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Everything posted by dcarch
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No, I don't have the last word. Physics law has the last word. One 8 lb ice wand has a very limited heat capacity to cool down boiling soup to food safe temperature for transporting to other locations. This may work a little better: Replace the water inside ice wands with thermal gel, which has a lot more heat/cool capacity than water, which is why they use it in ice cream makers and to ship food overnight. Let the boiling soup cool it itself down to food safe temperature first, then stir the soup with the frozen gel packed ice wand. Much better end results. Peltier solid state devices can be attached to the pot to cool electronically with no moving parts except heat removal fans. There are many refrigerators you can buy use that device. There is another very good technology in heat removal which is called "heat pipe", which is in most laptop computers, and in geo-thermal applications, which is very effective to remove a lot of heat in limited space. A "heat pipe" has no moving parts. BTW, a one-ton hoist/lift is less than $50. If it is my shop, I would do anything to save work with a guaranteed end temperature as per Code. Flip the switch on/off. That is all, no stirring stirring stirring, checking checking checking. It was fun speculating. Thanks. dcarch
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Not meaning to beat a dead horse, dead horse, dead horse ------ . I simply cannot see the possibility of ice wands working for the OP's situation. The largest ice wand I have seen is 8 lbs, and you may need 262 lbs of ice to cool that much boiling soup. Soup is thick, to stir that much hot soup with that many ice wands can be very tiring. A closed loop water system is a lot more complicated mechanically, because you still need to evacuate the same amount of hot soup BTUs, and a water pump will be needed as well as a fan system to cool the circulating water. I see the need to cool the soup to below 4 C, to just above 0 C, because OP's need to transport the soup to other locations. You definitely don't want the soup to go above 4 C safe temperature at any time. 100 L of soup is less than 4 cu. ft. When the cooling of 100 L of boiling soup becomes a regular requirement, a pulley/hoist such as an car engine lift is inexpensive which can lift a 1000 lbs. Lift the soup in place and flip a switch to turn on the compressor, the soup will be cooled down to exactly just above 0 C, No work what so ever. Not a ton of ice wands to wash, sanitize, and find room in the freezer to store for the next round of soup. dcarch
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Obviously you have a lot of commercial kitchen experience. I admit I am just a curious layman, but I am willing to learn. The OP said " I need to reach 4-10 degrees celcius. This is soup being made in a prep kitchen, to be chilled as fast as possible" I calculated the weight will be at least 220 lbs, not 200 lbs. And the need is to take the 220 lbs of hot soup from 212 F down to 39 F as fast as possible, not 200 lbs from 90 c down to 15 C, therefore it may take longer than 15 minutes a more labor. I am not sure where that 1/3 hp number come from, in any case, 1/3 hp = 224 watts = 762 BTUs. Not that much heat generated. Water cooled refrigeration system may not be legal in many locations. The OP may or may not have the extra "Infra-structure" to freeze all the ice wands. Obviously I didn't mean to say that only an used air conditioner configured by unlicensed staff can be used for this purpose. The paint stirrer probably can stir the soup in a more gentle manner than a worker stirring with many ice wands by hand, but I am not sure. I only know that paint stirrers have speed adjustments. I have a feeling that, based on calculation, 262 lbs of ice will be needed, that 1/2 a dozen ice wands can't really get the job done. In any case, it is up to the health inspector to judge which is cleaner, whether a mechanical refrigeration system with no moving parts except the stirrer, comparing it with 1/2 doz ice wands in and out of the soups, in and out of the freezer where all kinds of meats are kept, operated by hand labor. Anyway, as I said, I have not worked in a commercial kitchen before. Have seen a few though. BTW, the system I made was a large quantity ice cream maker. It was successful. dcarch
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Actually #2 Option. Based on the calculation above, it is not very possible to do the job right with Option #1 to remove that much BTUs from 100 liters of boiling soup. Besides, the labor involve in freezing, cleaning, stirring with ice wands may take hours, every time you make soup, year after year. Option#2 a. requires no work, just flip a switch. b. by principle, refrigeration compressor works most efficiently the hotter it is. c. It is very important to guarantee safe temperature to be reached in the shortest possible time with the minimum tools required. A compressor refrigeration system can do that. d. The heat removed will always be in a well ventilated kitchen, a kitchen which can produce 100 L of soup regularly. e. No need for running water. Compressor is air cooled. f. Less power use. It takes more power to freeze the ice wands for the same amount of BTUs to be removed. e. Actually the mechanical work to create the system is not difficult or expensive. As a matter of fact, I have done it myself. I used an old air conditioner and soldered some length of copper tubing ($35.00) on the expansion side, Got a $5.00 refrigerant tab, and a can of $13.00 refrigerant from an auto parts supply store to recharge the compressor, the system works great. dcarch
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It takes about two weeks to make corned beef from scratch
dcarch replied to a topic in Food Traditions & Culture
Guys, a quick tip, if you had not realize this already. Trim the thick fat cap off, cut in small pieces and fry to render the fat out. The remaining "cracklings" are more delicious than bacon. Try it! -
I was thinking about the same thing, actually the same principle as a wort chiller, if this is to be done regularly. It is not that difficult or expensive to get a refrigeration compressor and have a refrigeration shop hook it to a wort chiller. Using a slow paint stirrer, this can be done very efficiently to get the soup down to below safe temperature quickly without much work. dcarch
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I see your problem. I am not sure if I am thinking correctly, (also apologizing for non-metric thinking). 100 L = 220 lbs. 220 lbs of water at 212 F, minus 40 F, comes to 37840 BTUs of heat. It takes 144 BTUs to melt one pound of ice. So, it will take 262 lbs of 32 F ice to cool down 100 L of water from 212 F to 40F? dcarch
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Why don't you give this a try: 100 L is a lot of soup to chill. I am assuming that you still want very hot soup, just not burning hot. I am assuming also efficiency is important. Try boil a big pot of water, and use a small fan to blow on it. You may be surprised how quickly the boiling water cools down to what you need, may be 15 minutes. No work required. Assisted evaporation is very effective. dcarch
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It takes about two weeks to make corned beef from scratch
dcarch replied to a topic in Food Traditions & Culture
Pathmark - corned beef $1.78 a lb, cabbage $0.17 a lb. Shoprite - corned beef $1.99 a lb, cabbage $0.17 a lb. Stop&Shop - Corned beef $1.79 a lb, Cabbage $0.19 a lb (last year $0.07 each!) A&P - corned beef $1.99 a lb, cabbage $0.17 a lb. I will be clearing the freezer. No way I will be making my own. dcarch -
It takes about two weeks to make corned beef from scratch
dcarch replied to a topic in Food Traditions & Culture
Every time I try to make my own corned beef, corned beef goes on sale for $1.77 a lb, and brisket at $4.75 a lb. dcarch -
I don't know if the glue for bamboo kitchen use is food safe. But I don't feel it is of environmental concern. Plywood, particle board, furniture, ------------------ etc. use glue billions and billions times more than the few kitchen tools. Bamboo has to be glued because bamboo plant is a tube, not solid lumber. Bamboo is extremely durable, with tensile strength like steel and does not rot easily. Bamboo is extremely fast growing, you can actually sit in front of a bamboo plant and see it grow. And bamboo shoots are delicious :-) dcarch
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Yes, I do have a habit of "If it ain't broke, fix it anyway" LOL! Actually I do the same as you when I just need a couple of slices for myself. This method is to revive a good size frozen loaf for dinner for a few people. Comes out almost like just freshly baked. dcarch
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Bread has two parts; soft interior and crispy crust. Soft interior needs moisture and heat to soften, and the crust needs high dry heat to get crispy. So how do you reconstitute frozen bread? Here is what I do: Use a thin ceramic tile to cover each open end of the loaf and bake in a toaster oven. The high heat crisps up the crust and drives the steam into the interior. The ceramic tiles insulate the high heat, trap the steam to moisten, soften and to gently heat the interior. Seems to work very well for me. Give it a try and let me know if you get the same result. dcarch
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Per Se gets horrible health department inspection report
dcarch replied to a topic in Restaurant Life
I know of one Building inspector whose previous job was a carpet salesman. No formal training in anything related to his current job. dcarch -
Per Se gets horrible health department inspection report
dcarch replied to a topic in Restaurant Life
"------Calling into doubt the honesty and integrity of public servants who provide such an important service to NYC isn't fair.---" Really? I guess you are lucky that you have never been given unfair traffic tickets and tried to fight one in court. dcarch -
Per Se gets horrible health department inspection report
dcarch replied to a topic in Restaurant Life
In a New York City environment, all the buildings are connected, plumbing, electrical lines, ventilation equipment etc. There is no way you can prevent infiltration of insects. With so much at stake, I guess operators will have no choice but to apply the most toxic poisons everywhere, 1000 times than what is enough, on all surfaces, all nooks and crannies. Who is going to tell? That's why I try not to eat out too often. dcarch -
Casual restaurants for food that is not convenient to make at home
dcarch replied to a topic in New York: Dining
I will be visiting Brooklyn Museum tomorrow. May be my friends will take me to a place. dcarch -
Not trying to be authentic Mardi Gras. Just trying to use whatever I had in the refrigerator and the pantry. dcarch ( Can't seem to get my pictures smaller! ) Mardi Gras Surf & Turf, New Orleans Shrimps and Blackened (sous vided, Actually) Beef Tenderloin Dirty Rice
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Just look at that blissfully blistered pork rind!!! OMG!!! dcarch
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Actually I found out there are many cultures where steamed bread is normal. There is no recipes really for steaming bread. You can steam any bread recipes. As a matter of fact, I think all bread inside are nothing more than steamed, only the outside is baked. Steaming has it's benefits. You cannot over steam, whereas you can over bake. You save energy by steaming. No heating up a large oven. You can steam a very small bread. dcarch
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Just having some fun with dough. I needed some baguette for my smoked salmon. I found an old (many years old) packet of wine making yeast. So that's what I used. I felt that a baguette should be long, at least 24" long. I understand sometimes they can be almost 40" long. So I made one that is 27.5" long. It was very good. Then I used the same dough to make a pizza, a white clam sauce pizza, not bad at all. A few days ago, I was careless and burned the roof of my mouth. I wanted some bread, but the crust of bread would hurt my mouth. So I made a steamed bread with some leftover spinach smoothie. I think I will make this again sometime. dcarch
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It takes about two weeks to make corned beef from scratch
dcarch replied to a topic in Food Traditions & Culture
5.17% dryer, at least. dcarch -
It takes about two weeks to make corned beef from scratch
dcarch replied to a topic in Food Traditions & Culture
They taste exactly the same. I used the same seasoning in identical quantities. Just different mouth feel. dcarch -
It takes about two weeks to make corned beef from scratch
dcarch replied to a topic in Food Traditions & Culture
Last year, I did an experiment. Same slab of corned beef cut evenly into two equal weight pieces. One sous vided One pressure cooked. Sous vided one was 5.17% less shrinkage. (and fork tender). It also means if you sous vide, the meat is 5.17% cheaper. dcarch -
Basquecook and Ann_t: I can't make up my mind which one I want for dinner, the wanton or the Agnolotti.. OK I will take both. :-) Anna N: Every one is making my favorite dishes. Beef stir fry and Broccoli is my favorite food pairing. Nickrey: Beautiful Sous vide halloumi . What temperature did you make it at? Blether: It must have been a couple of years since I made a Shepherd’s pie. You inspired me to want to make one soon. Kim: that Spaghetti Bolognese can go on any magazine cover. Jayt90: your pork dish was what inspired me to make mine. Steve Irby: spectacular Speckled butter beans soup. Robirdstx: I probably will have, one, two, three or more bowls of that Crawfish Etouffee . Franci: Very nice plating of beef shank with risotto. Mm84321: museum pieces, is all I can say. - - - - - - - - - - A few recent ones dcarch Sous vide leg of lamb Sous vide roasted pork Crispy pork skin from above Stuffed tofu
