March 15, 2016

The Children Assemble a Nixie Tube Clock


Child 1 had been wanting a clock in her room for a while, to know how late it was getting when she is up reading after bedtime, and also to be able to set an alarm to get up in the morning. We could have just purchased a cheap clock from any number of retail sources, but I thought it would be a good opportunity for a project.



When the kids soldered the through hole parts into the motor driver board for our CNC woodcutter, they did a good job and had a blast doing it. So I thought if I could find a clock kit with through hole components it would present them with more parts to solder, and to a useful end.

I've always thought nixie tubes were cool, and have wanted to build something with them for a long time. I even bought some tubes from one of the ebay sellers based in Russia, but so far all they have done is moulder in my basement. Apparently the display tubes were still manufactured in Soviet factories much more recently than you would have thought, and are sitting in warehouses across the eastern bloc gathering dust. You can find many a nixie clock on ebay, so I emailed the seller of a design I admired and asked if I could pay him full price but have him send the clock unassembled, assuring him that I had the skill to deal with that and wouldn't bug him much with issues encountered building the clock. He accepted this proposal and sent us a kit form clock, with some nice instructions and even a few simple jigs for mounting the tubes. What a guy!

I think of myself in this instance as admirably practical since I decided to buy a kit, rather than feeling compelled to design the whole thing from scratch and write the embedded clock code. I hope I get some credit for choosing to not do things the hard way :).  It helps that the clock is so nicely designed.

The kit sat on the shelf for like a year, until I got myself together enough to set up to do the project with the kids. Child 1, Child 2, and Child 3 all love soldering and were excited to set up the static mat and soldering tools on the dining table.



Over a couple weeks, we gradually installed all the components.


I didn't solder anything on this board, and only had to help fix a couple small problems like a backwards diode, solder bridges, and the like. I did help Child 1 identify parts and figure out assembly order and orientation, as well as the use of the tube mounting jigs.


We used lead free solder, because that made everyone feel better about the project. I must say it is harder to work with. The iron temp had to be adjusted up quite a bit, and it forms dross more easily than 63/37. The dross doesn't go away as readily with application of flux either (even though I had bought a special lead free solder flux pen). But it was not impossible, just more challenging.


Child 2 put in a few parts as well, while Child 3 was mostly interested in working with me to solder bits of brass wire together into shapes. Here is one Child 2 did with me as a present for a friend's brithday.


I printed out the resistor color code and Child 1 used it to figure out which resistors were which.


Probably I lost them while shuffling the kit parts around, but we found ourselves short a 4MHz quartz crystal, the wall power adapter, and the case screws at the end of the assembly. The crystal and adapter were easily sourced from Digi-Key and I borrowed a couple screws from work for the case.


We tested out the board in stages, as directed by the instructions, and everything worked fine (after I actually understood the way the UI worked).

The clock is beautiful and works well. Child 1 is super pleased with the clock, and herself for building it.


Only minor quibble is that it is awful bright in a dark room even at the lowest brightness setting. A photo cell and auto brightness adjust would be a nice addition for a future version. The PIC that is running the clock is more than maxed out on pin usage, but perhaps a bigger chip or an external MUX could be used to address that. At minimum a few more clicks on the low end of brightness range would be great.

I love how the blue LEDs are positioned so they shine up into the sealing area in back of the tubes, such that the LED output is light piped around the tubes by the glass envelope. Brilliant!

Child 1 is happy, and Child 2 wants to build one for her and Child 3's room too.


March 1, 2016

Aggressive Composting, and Retiring Chickens


Reading The Humanure Handbook, by Joseph Jenkins last year really inspired me to try to compost (almost) everything. So this last season we started ignoring those picky commonplace composting rules often given to home scale composters. Such as: No Meat or Animal Products, No Fat, etc. We just started putting it ALL in there.



For instance, after we eat a chicken and Becky turns the carcass and bones into stock, the extras just go into the compost. Same with beef and pork bones, bits of meat and fish leftovers, animal and vegetable fats (though we save bacon grease for cooking, yum). This has worked out perfectly fine.

I think we have more insect and worm life in our compost house than is typical, which helps to break things down much faster and with normally no perceptible odor outside the bin. The kids sometimes dig around in there to find cool bugs and pull out worms. Child 2 puts on garden gloves first, because the compost can be a little gross, but once she has her catch extracted she goes bare handed with it.


That is a big earthworm found in the wood chips, not a compost worm, which are redder and smaller. But you can get an idea of Child 2's close relationship with worms.

A family of mice nested in the compost last winter. One day in early spring I opened the lid and saw about 5 little mice running around. This was fortuitous because Child 3 is obsessed with mice. For a few months they would often go out and peek under the lids to check out how the mice were doing. As the season progressed we occasionally found dead mice around the yard.



We buried these near perennials, to give a dose of nitrogen and phosphorous to the plants.



When people got tired of burying mice, then started going to the compost instead. From compost they came...

Child 1 started carving a little headstone for a mouse burial from a scrap piece of carrara marble I had around, but it became an unfinished project.



I was a little concerned about the mouse population exploding in the compost bins, or mice finding their way into our house, but neither of those outcomes materialized.

I'm loving the compost house we built the year before; so convenient to use, plenty of capacity, and keeps the critters we have around out effectively. The greater volume and thick wood walls help retain heat and moisture, allowing the pile to seethe more actively during the cold season. Seeing as how I built it from green local rough sawn pine, it probably won't last long, but when I rebuild it I may do so with green local oak, which ought to last longer. If I can figure out space to do so, I may cut up and bury the used pine into a hugel bed, removing and reusing the stainless screws first.

We accumulate compost in the westernmost bin, at a rate of a 20L pail every 4-7 days plus seasonal garden waste. At the end of June 2015 when we cut down our strawberries for renovation, I emptied out the second bin in from the West and piled all the strawberry cuttings and some other garden waste in the bottom, then forked on the contents of the accumulating bin from a year of compost. The level was nearly to the top after forking over, but over the ensuing months it has dropped to about 2/3 full as it consolidated and continued to decompose. I'll riddle this compost to remove big chunks (sunflower plant roots and avocado seeds take a while to reduce), pick out produce labels, then spread it on the garden this spring or summer. This will mark a year since I put anything new into that batch.

Meanwhile we are accumulating another year's load into the western-most bin. The level builds up somewhat during fall and winter as the temp drops and plenty of garden cleanup and harvest processing leftovers are loaded in. But then it goes down again as biological action quickens in spring.

Most paper waste still goes into the recycling rather than the compost. It is too carbon rich and slow to decompose if much of it goes into the pile. There is also some concern about what is used for inks and glossy paper coatings, and if I want to be putting that on our food later on. But if we had the moral fortitude and space to compost our poo like decent citizens, I think the pile could probably deal with a lot of shredded paper. Maybe someday. But I'm too much of a wimp to go there yet.


Old chickens to compost
One new category of bio material we put in the newly aggressive compost system was feathers, heads, feet, blood, and innards from three chickens we dispatched in the backyard in October.

A friend of mine from work, Steve, had kept a few hens for eggs the last couple years. He had always figured on turning them into chicken soup when they became unproductive, but in those years his kids had become very attached to the birds and thought of them as pets. So slaughtering them himself was not going to make him too popular in the family. He offered them to me instead and I said I'd be glad to take them.

I'd actually never killed and dressed a chicken. One time years ago Becky and I processed a duck from my mom's neighbor for thanksgiving. We tried to catch it in a fishing net for like an hour until the farmer finally just shot it for us (probably we gave him a fun story to tell his friends about those youngster yankees from the city). And I killed and dressed plenty of rabbits and quail from hunting with my mom when I was growing up, but never chickens.

I do believe that if you eat meat, it is good to sometimes be reminded of the fact that animals are being raised and killed to satisfy your appetites, and to be faced with the earthy details of that enterprise. So it seemed like a good thing for our family to get a dose of reality and an experience we don't usually have the opportunity to choose, plus some tasty chicken soup.

We scheduled the pickup from Steve for when my mom was visiting, since she had experience with keeping and dispatching chickens, gained during her tenure living in the country in North Carolina. I purchased an ebook about the subject called EATING the working chicken" by Anna Hess. Her books are great since her interests and methods often coincide with my own, and I've bought plenty of them on Amazon. They are short, but to the point and inexpensive. Her frequently updated and always interesting blog is at waldeneffect.org.

So equipped with a paring knife, garden gloves, a clean sheet of plywood, a bucket of water, and my kindle we set to work. My mom has a special technique for the killing part which she says is faster, cleaner, and less chaotic than the usual methods, taught to her by an old lady in North Carolina. It is claimed to make the feathers easier to remove too. Here it is:

hang the chicken up securely by the feet; when they are turned upside down they get weirdly calm. We bound the feet with jute garden twine and hung off the side of the slide on the play set in the back yard, such that the head was about waist level.
cup the head in the palm of one hand
hold the paring knife with your other hand, positioning it just outside the beak
do a quick but controlled and firm insertion of the point of the knife in through the open beak and up into the skull through the roof of the mouth
twist and gouge the knife around a bit to scramble the brain. Don't get too enthusiastic and poke it out the back of the skull and into your hand.
wait a few seconds or minutes for the bird to die, then slash both sides of the neck to let the blood out and proceed as usual

This actually worked great for us, though I have little to compare it with, not having killed chickens any other way. The first two died very quickly after the knife plunge and the whole affair was quiet and low drama, lasting only a couple seconds. The third one was less calm and squawked around while we were hanging it up, then flopped around some after the killing stroke; my mom had to hold the wings down and I held onto the head while we waited. Probably a typical setup like a kill cone or bucket would be a good substitute if you were doing it alone or with helpers otherwise engaged.

As I stood there with a chicken's living head in my hand, knife poised, I couldn't help thinking to myself, "I'm about to end your existence for no justifiable reason, other than that life is brutal and unfair for most living things. I promise to try and minimize your pain, and be grateful as I am eating you". You know, the kind of thing a liberal city person would think in this situation. What can I say, it was an intense experience. I just don't often find myself killing warm blooded animals up close with my own hands. I do think it would be better for people's health, the environment, and animal welfare if everyone were vegan. In fact, our family was mostly vegan for a year. But nevertheless here I am, still enjoying meat.

If I did this more often I'm sure it would be no big deal, and perhaps my mind would have wandered to thinking about how dreamy Kim Soo-Hyun is in the excellent K-drama My Love from Another Star, which Becky and I had recently enjoyed via the internet.


But as it was, I was very much in the moment.

After letting the chicken bleed into a pail positioned under the hanging spot for a few minutes, my mom and I would start in with pulling out feathers. They were not too bad to get out by hand; some of the big wing feathers didn't come out all the way and left behind some stubble. In maybe 10 minutes of effort we had 98% of feathers removed and put into the blood bucket. Maybe the brain stabbing method does help with feather release. I would then take the chicken down and remove the feet and head with kitchen shears. Next I opened it with the paring knife and scooped out the insides in the manner described in the ebook listed above, then rinsed well with the hose.

I was up to my elbows in warm chicken stuff, so I didn't take many pictures. Here is my mom with one of the birds, note my kindle on the table.



Child 1 was indoors during the few hours it took us to work through the chickens, but Child 2 and Child 3 were playing in back. They really didn't seem to have any issue with what was going on, and even asked for feathers while we were plucking.



Being in the 16th most densely populated city in America, with the backyard in view from about 17 neighbors and countless passers by, I half expected the cops to show up at some point. But apparently no one noticed, or it was not a remarkable activity.

Inside, we dipped the chickens in hot water and tried to get out the last few feather quills. These chickens had a LOT of creamy yellow fat on them. We need to do more to learn about chicken fat based cooking. Jewish tradition has a whole cuisine built upon schmaltz. The meatiest chicken was the Barred Rock, which had the coolest feathers most in demand with the kids, plus it was very calm throughout the process. I wonder if it was the individual chicken, or the breed?

At last the three chickens were double bagged in shopping sacks and went into the chest freezer. The bucket of extra chicken stuff went in the compost. In the following weeks, the compost did get a little stinky, but nothing extreme and it dissipated eventually.

Later in her visit (after we had a chance to mentally distance ourselves from the chickens), my mom made us her choice of dish for old hens: chicken and pastry. Here is her recipe:


Make stock and meat


- cut up chicken and cover with water or broth, at least 100mm above meat
- season to how you like (she uses sage, cumin, rosemary, salt, pepper)
- add one onion, some garlic, whatever else you would put in chicken stock e.g. celery, carrot
- simmer for 2-3 hours, pick or strain out chicken and chunks you don't want to leave in
- pick meat off bones and chop coarsely (don't remove fat from pot, yet)
- skim off 3 TBS worth of fat from pot, take the rest out and put in the compost or save for other uses
- take out 2/3 cup broth

Make pastry
- mix 2 cups flour, 1.5 tsp baking powder, 1/2 tsp salt
- make a well in dry ingredients, add the cooled broth and fat reserved from above
- stir quickly, knead for 1 minute, let rest for 10 minutes
- Roll out to ~3mm thickness, cut to about 2x10 cm

Make stew
- add pastry to simmering broth, gently boil for about 30 minutes
- add in reserved meat if you haven't already, any extra veggies you might want at appropriate time
- push pastry down a couple times until is stays down


It was pretty good. Becky has used the other two chickens to make stock, then peeled the meat and used it for soup or salads. While the meat is not plentiful and is a little tough, the flavor of the stock and soup is intense and delicious.

We have a hazy idea that we may in future build a chicken house and keep some egg hens. Maybe after they become unproductive, Steve can return the favor and take them off my hands to spare my kids some hard feelings!

February 17, 2016

Enterprise #25 antique iron sausage stuffer, plus sous-vide sausage




In our menagerie of hand cranked food processing machines, I've long felt we were missing a sausage stuffer. I was attracted to the cast iron vintage beauty embodied by the line of small stuffers manufactured by the Enterprise company, of Philadelphia.



This is the same Enterprise Co. which made the #10 and #5 antique meat grinders I have acquired and put to work. They also made a range of sad irons, which I hope to get into someday. I've got a concept for an induction heat docking station which would make using sad irons more safe and convenient. There is not a lot of online documentation for Enterprise Co. or manuals for its products. Here is a neat link to a survey of it's factory on N. Third St. from 1882.


An impressive looking brick premises, powered by steam and employing up to 400 people. Looking on google maps, the site of the factory now has an ugly office supplies warehouse on it; wonder what happened to the Enterprise factory building. By coincidence one of my best friends lives some distance to the south on N. Third St.


Acquisition
A new one can actually be had from Chop-Rite II or it's distributors, using what looks like the same patterns for the castings. But they are expensive, and furthermore I think using an actual antique has a certain charm. I enjoy the feeling that a tool has been around for a hundred years, that others before me have put it to use, and that it might endure into the future to benefit the next owner.

There are plenty of Enterprise stuffers passing through the ebay market. They tend to go for a lot of money if they are in good shape, and even ones in bad shape are not that cheap. I'm pretty sure these are mostly used for decorations rather than stuffing ground meat and fat into intestines. After spending some time watching listings, I decided the 4qt #25 was big enough for me. This should hold over 3 kilos of meat per load, which ought to fill 20-30 sausages. Running several loads through during a session should be easy if needed, and I don't expect to be making all that much sausage per year.

I bid for one that looked in reasonably usable condition; I think I spent about $150 on it. Just for reference, you can get a new dishwasher capable stainless and plastic hand crank stuffer which probably works as well and would be easier to store and clean for less money. Guess I'm kind of a sucker for an old cast iron beauty in need of some TLC.


Stripping it Down
When it arrived, it was apparent that it in fact was not in usable condition and had been covered in a thick layer of black paint over primer, not obvious from the auction listing. The paint covered the gear teeth and the screw and everything else. Discouraged at the prospect of stripping all that paint, I put it on the shelf in the living room (yes, for decoration), where it awaited more attention for a couple years.

Lately I've been thinking on trying to finish half done projects laying about and also daytime fasting more frequently, both of which made me think of sausage and how to stuff it. Some research online turned up a number of Enterprise stuffer restorations where people had the parts bead blasted with great results and no damage to the underlying iron.

I've had heating grates blasted at a place in Everett before, but I wasn't completely happy with the experience. The internet turned up a small scale place in Somerville which did blasting and had convenient hours for dropoff and pickup, so I thought I would give them a try.

Getting the stuffer apart is easy; just use a wrench to take off the two tie bolts running parallel to the cylinder, then crank the screw all the way down and out. From this point you can remove the gear which runs on the screw, then the crank handle (using a screwdriver), and finally the horizontal shaft and gear which runs from the crank to the screw gear.



I asked the blasters to use plastic, walnut shells, glass beads, or soda as media so the iron wasn't abraded too much, but they ended up using aluminum oxide. It doesn't matter on the cast surfaces, but it did frost up the machined surfaces which was not ideal.



While I wasn't happy at the choice of media, they did do a good job with the aluminum oxide and it looked like they used a fairly high grit so the frosting wasn't as bad as it could have been. They also turned it around in a couple days, which was excellent. Cost was $140 for about 12 discrete pieces which made up the machine. I masked the wood handle before dropping it off. Here are the parts when they came back from blasting.



Unfortunately the large disc was resting at the bottom of the cylinder when I dropped it off, and they didn't realize it wasn't part of the cylinder, so the bottom of the cylinder and the top of the disc did not get blasted.



I set to work with wire wheels, both mounted on the buffer and on an angle grinder to strip the remaining paint and smooth and burnish the blasted surfaces.



Between the wire wheels, some fine non-woven pads, and toothbrush sized wire brushes used by hand, most parts were looking pretty good after a couple hours work.



Later on Becky told me the skin on my face smelled just like iron. Picking paint out of the threads of screws with a dental pick is one of those times when one questions the wisdom of decisions taken on restoration projects. But, onward.

The remaining paint was stubborn and did not come off easily with the wire brush. A thick coat of Peel Away 7 with it's accompanying cover paper was put down in the bottom of the cylinder, the top of the large disc, and the wood handle on the crank.



This was left overnight, then scraped the next day. One thing to note is that I've yet to experience paint actually Peeling Away when removing the cover paper with Peel Away 7. But it does make paint soft enough to scrape and brush off, and the paper keeps it from drying out.

We quickly discovered that the paint covered up a not insubstantial layer of rust over everything. Nice! In case you one day find yourself thinking about covering up rust with a thick layer of paint, please, just don't.

So after removing the gunk of the softened paint and stripper, I washed the pieces and put on some phosphoric acid rust remover. This was then rinsed off and some more work was done with a nonwoven pad and the little wire brush. On the wood part of the handle, I did some sanding after the paint and stripper were scraped off.

Finally, all pieces were washed with water and Simple Green, rinsed well, quickly dried with a towel,



then completely dried in the oven.


Building it Up
Raw blasted cast iron will show visible rust in less than a minute after coming out of water,



so clearly a coating of some sort was needed. Since we are making food with this, I thought seasoning it like a cast iron pan would be appropriate. Many bytes on the internet have been dedicated to discussing seasoning of cast iron. Suffice to say there are lots of opinions on the best way to do it. I think for pans it is not that crucial since once you start using it frequently, it eventually gets to the right place, provided you are maintaining it decently.

Iron parts were brushed with canola oil,



then put in the oven over a drip pan at 120C (250F).



After about an hour, I took each piece out and wiped off the now heat thinned oil with paper towels. Then the parts went back in and the temp was raised in stages first to 175C (350F) then to 260C (500F). After an hour at the high temp (with the hood running to suck out the bountiful oil smoke), the oven was turned off and the parts left to cool in the oven overnight.

The oil carbonized in the metal and gave it a darkened finish, not really like a well seasoned cast iron pan, but going in that direction.






There was none of the gumminess I've experienced after seasoning at a lower temperature. I brushed and picked out a few carbonized deposits, probably from where oil pooled, then recoated with light olive oil (don't think it really matters that much, but I was out of canola),






and did another oven cycle. This darkened the parts further and I felt it was enough for the stuffer.



I didn't want to put the crank handle in the oven, out of consideration for the wood handle. So I just heated it until smoking and darkened over the stove top, up close to the end of the handle.



After two coats of this treatment, I took the crank arm to the basement and put on three coats of my favorite oil based finish, Waterlox (just on the wood part). When dry I applied a final coat of furniture paste wax and buffed it out with a paper towel.



To finish up the iron parts, I lightly sprayed with Fluid Film, a non-solvent lanolin lubricant and rust preventer.



Ben Polito turned me on to this stuff; he now uses it to keep our cider machines in working order. It is pretty great, and I've started using it more and more. Works very well on my bike chain and other bike lube points for instance. It is food rated in Canada, which is good enough for me to feel ok about putting on the stuffer. Only downside is that is goes on rather thick, and has a funky biological smell to it. We wiped off the excess sheep grease with paper towels.

Most likely future dust accumulation would come off easier without the top coat of Fluid Film, but I feel better having it on and the gears, screw, and bearing surfaces will certainly benefit from it. I shot a little squirt into the two "OIL" points marked on the top bridge casting.


Supplemental Parts
The stuffer came with one bent up, rusty tube.



I took a chance and ordered three different size stainless tubes from LEM, product #s 606A, 606B, and 606C. All fit fine at the base, except the 1" tube wouldn't quite fit through the opening on the front face of the nut. This was easily solved in a couple minutes with a boring bar on the lathe at work.




The LEM tubes do look awful long to me; definitely a lot longer than the tube that came with the Enterprise. I suppose this lets you put more casing on the tube, but surely creates more back pressure especially with the smaller diameter tubes. Perhaps I'll cut them off someday.

I read about how people experience a lot of meat squeeze out around the edges of the disc when stuffing, so I got an inexpensive HDPE sub plate to use which fits the cylinder more tightly and is reported to vastly reduce squeeze out. My iron plate actually fits pretty tightly, so I didn't use the plastic gasket the first time.

Finally, the thing had a tendency to tip over when the screw and head assembly are swung out of the way to load the cylinder, and I didn't want the feet to scratch up the counter. I dug up a couple red cedar scraps from making our fence and screwed them on the feet.

Now our stuffer was looking sweet and ready for action!


Taking it for a spin
With the #25 stuffer finally restored and fitted out, it was time to make some sausage! On the recommendation of Sausagemania, I purchased 90 meters of 32/35mm salt packed pre-tubed natural hog casing from Syracuse Casing Company.



I ordered 2.5kg of pork butt and half a kilo of back fat from our local hipster butcher shop, M.F. Dulock. They had it ready to pick up on Saturday morning. That week, the hog was a Berkshire, and the meat looked wonderful. Gauging the level of fat in the pork butt, I chopped it up into 15-20mm cubes and did the same with about half the fat.



The kids had fun with the new foodsaver vac packer while I was chopping. Below, they are about to vacseal an origami balloon.



We wanted to make a basic sausage, to check the level of readiness for our gear and technique. We used the basic recipe from Polcyn & Ruhlman, with just salt, black pepper, and garlic.



I like garlic, and used about 1 head worth, minced by knife. We used 40g of kosher salt, which is the level recommended by the recipe and also mentioned by Michael at the butcher shop (he put it in terms of 8g salt per pound of meat), and 1 tablespoon of coarse ground black pepper. These were mixed with a wood spoon into the cubes of meat & fat,



and turned into a casserole dish to chill in the freezer for a while. Meanwhile two 9 meter lengths of casing were taken out and put to soak.



I'm looking to phase out the #10 meat grinder, feeling that it is too big for my needs, so we chilled the #5 in the freezer and set it up on the counter with the 5mm die fitted. The rate of grinding for the #5 is plenty fast for this amount of processing, but the drawbacks are that the hopper is small, so you can't load as much material and some tends to spill out if little people are helping. The bigger issue is the size of the space defined by the ID of the barrel on the housing and the outer surface of the screw. As it turns out, I should have gone smaller on the cubing step with the meat; lots of the chunks I cut were really too big and got kind of mushed as they were brought in by the feed screw. I think the #10 probably deals with bigger chunks more readily. But armed with this new realization, I feel better prepared to succeed more smoothly with the #5 next time.

In any case, it did a fine job of grinding; probably took less than 30 minutes with Child 2 helping.


The ground meat went back in the fridge while we set up the stuffing operation. A casing was rinsed and I tried to get it on the 1" stuffer tube. 32/35mm casing turns out to be just a bit too small to make this easy, so I switched to the 3/4" tube. The pre-tubed casing was very convenient to get on the tube and use!

I read about how some Enterprise stuffer users put their meat in a bag. (Yes, this whole endeavor makes plenty of opportunities for off color jokes, which I take full advantage of out of earshot of the children). The bag then goes in the cylinder, with a corner getting pulled out the spout and snipped off. This sounded interesting to me so after mixing the meat and spices with 1 cup of hard cider (substituted for the red wine in the recipe) for the binding step, I tried loading it into a 4L ziploc, which wasn't quite big enough. Next time I'll try a bit bigger bag, maybe from McMaster.


Now we were ready to start. Child 2 is munching on roasted cauliflower and apple, Child 3 wants to crank.



The kids took turns cranking the stuffer while I tried to manage the filling spout. There is a balance to how fast you allow the casing to come off the spout, how firm you let it pack, not getting the casing hung up, etc. Suffice to say I need more practice, and should probably try to do a better job eliminating air bubbles when loading the cylinder. We ended up using most of two lengths of casing, making two coils on wet cookie sheets. I had to clamp the stuffer to the counter midway through since the kids were having trouble keeping it still and also applying the requisite force on the crank.

Hmm, this sausage spiral can't possibly be 9 meters long?


Child 1 and I twisted the coils into links, another aspect of sausage making which I clearly need more practice at. Child 1 had a fine old time grappling with slick intestines.


For being so thin, hog casing is astoundingly strong. It is strange how the links hold their shape, even after being cut at the twists.

We had perhaps 150g of filling left in the bag at the bottom of the stuffer even after it bottomed out, which we made into patties and cooked in the pan for dinner. A couple sausages were also pan fried for the evening meal. They were pretty good, though a little on the salty side. Child 2 and Child 3 found them too peppery. Child 1 ate up their leftovers and was still asking for more. The garlic came through boldly. Becky thought the cohesion of the sausage filling was not as good as it could have been. I think maybe I needed to work it more during the binding step, or else fill it more tightly in the casing.

The extra sausages were frozen individually on a cookie sheet, then vacuum bagged in batches of 4 or 5. I vac sealed a set unfrozen, and of course they got horribly squished. Hence the freezing first.


Other Possible Uses for the Enterprise #25
The press is often referred to as being useful for "Cider, Duck, and Lard", in addition to sausage. It came with a cast iron bottom grate and a perforated cylinder which could be used in conjunction with a smaller diameter top plate to press material with a moderate amount of force and extract it's juices. The perforated cylinder that came with mine was beat up and very rusty, but you can buy a stainless replacement new from Chop-rite distributors. They are not cheap though, so I opted to wait to spend that money until I found something I wanted to juice with the Enterprise.

Cider
The prospect of pressing cider with this machine is not terribly motivating. Firstly, the acidic cider is going to corrode the cast iron quickly. More importantly, the capacity is not that large in the context of cider, and the amount of force it exerts is not great compared to a more purpose built apparatus. I think with the Enterprise, it would take you all day to run through a modest amount of pomace, and your yield would be low because the pressure is inadequate. Knocking up a homebrew basket or cheese press with more capacity from wood and a cheap hydraulic shop press would surely get you to a better place. Has anyone out there used an Enterprise for cider making? What was your experience?

Duck
I had never heard of this dish before, and truthfully it makes me feel a little queasy to contemplate it. Apparently it was considered the height of cuisine in 19th century France. A duck is killed by asphyxiation (to keep the blood in), and roasted intact with all organs excepting the liver. Then the major pieces are removed and the remainder of the carcass put in the press, hot. Next:

"The increasing pressure of the crank plate compacts the bird until its bones are pulverized, the organs liquified, and the carcass blood juices out of the animal, all of which sluice through a small spout in the duck press and are collected in a pan, then strained through a fine chinois. The chef then thickens the mixture with the pureed duck liver, adds Cognac and red wine, and reduces it carefully until it achieves a deep burgundy, almost black color. Diners are then treated to thin slices of the duck breast in the exquisite blood sauce, followed by a second course of roasted duck legs and thighs."

I often feel like a bit of a wimp for not being a more adventurous diner and generally embracing tip to tail eating, but still... yuck. Description lifted from the website of D'Artagnan.

Lard
We do render lard at home for use in cooking and pastry on occasion, and I've found a few references to improving the yield of this operation by compressing the cracklins to extract the maximum liquid. This makes sense to me, but I'm not sure how much extra you would gain and getting the press covered in pig fat might not be worth it unless you were rendering a large batch.

Etc.
Thought about using it for cheese, but I think the corrosion issue would be a problem with the cast iron and acidic whey. There must be other projects it could be useful for.


Sausage Sous Vide
Some years ago I built a two channel temperature controller using an obsolete case design from a project at work, plus some affordable process controllers from AutomationDirect.com. It is handy to have around; my most frequent uses are in controlling a crock pot for soap making, and in controlling soil temp for germinating and growing seedlings on a warming mat. But with my recent addition of a food saver vac sealer, I'd like to try out some sous vide in a crock pot.

For those who have not heard of the concept, sous vide (french for "under vacuum") is a relatively new innovation in cooking wherein the food is sealed in a plastic bag, then kept in a temperature controlled bath for long enough to completely equilibrate to the bath temp. The setpoint of the bath is put to the level that equates to perfectly cooked for that type of food. Essentially the technique is a form of precision poaching, minus the direct contact with water. Usually meat cooked this way is finished with a short duration, intense sear to create flavor without much additional cooking.

The promise of sous vide is that it keeps the food juicy and the flavors in, while opening the process window for achieving perfectly done without overcooking, as well as enabling this to happen for the full depth of the sample. While it is possible to overcook food using sous-vide, you have a long while between done and overdone because the temperature of the food can't rise above the bath temp.

Downsides are that it works better for some foods than others, requires specialized equipment, and that it is not mentally appealing to think of cooking your food in a plastic bag for hours on end in warm water.

Restaurants apparently use the method extensively these days, in some cases to enhance the food or create new dishes, but also because it allows bulk food preparation in advance. For instance, you can sous vide a whole lot of steaks ahead of time with low labor input, then be able to finish them for orders in a minute by extracting from a bag, searing with a torch, then plating it up, with less attention to the done-ness of the cooking.

I'd read about sausage being cooked sous vide and staying amazingly juicy, so I thought I'd give it a try using my homebrew sous vide setup. Normally there is a circulator in the bath to assist in equalization of temperatures and in rapid heat transfer from bath to food, but I figured for a small amount of food it might be ok to use a still bath.

Earlier in the day I filled the crock pot with water and allowed the controller to take it up to 62C. 


Then about 1.5 hours before dinner I tossed in a bag of partially defrosted home made sausages. I used a stainless thermocouple inserted through the vent of the lid and dipped into the water to provide feedback for the controller. The sausage bag was turned a couple times during the 80 minutes of cooking. Yeah, my crockpot has awesome maple handles and an electronics knob, replacements for the crappy phenolic accouterments that cracked off after years of service.


My veggies were not done yet when the sous vide was done, so while in theory I could have just left the sausages in the bath, I took them out and put them in the fridge while waiting for the rest of the meal.

Finally at eating time I unbagged the sausages


and toasted three with a MAPP torch,


and three with the broiler on high. I discovered that the >12 year old torch has a leak and should be replaced when the whole top of the apparatus burst into flame while I was toasting the sausages. Fortunately I was able to blow it out, rather than having to defenestrate it from the second floor into the snow or something silly like that. The kids found this incident rather distressing, but also exciting, and I think it vastly enhanced their interest level in eating the sausage.

The sausage casing shrunk tight while being finished, a little like heat shrink tubing, both for the torch and the broiler. This had the happy effect of getting the sausages back into original shape, almost erasing the intense squishing they had experienced in the vac bag.

The broiler group went on a pan just used for roasting eggplant, which had some veg stuck on it and a coating of olive oil. In the broiler all this got highly charred and baked on; the pan was not that fun to clean afterwards.


So my experience (undesired combustion notwithstanding) was that the torch method was faster, easier to control the sear level, and made less of a mess.

I cut up the sausages and we enjoyed them with olive oil roasted eggplant, turnips, and carrots, plus hummus on the side. While it took an almost comical assortment of equipment and process steps to get there, these sausages did turn out really juicy and extra tasty. Probably could have seared them a little more.


In future, I may try some other sous-vide experiments. But it felt like a lot of overhead for the return.