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You should try to build a chamber that sprays liquid nitrogen or other cryogenic liquids at the food.
Idk, good luck.
I believe that the problem with this method is that the nitrogen will expand in contact with the hot object, and this being a chamber means that there's risk of explosion.
They never said the chamber had to be pressure tight ...
There is a drink chiller that chills drinks in about a minute. You could use the same idea for other things.
The Chill-O-Matic is smaller, cheaper and probably easier to clean as it doesn't seem to have tubing.
The design of that machine in your link is a lot of overkill for something simple.
In beer brewing there's a point where you want to cool your beer down as quickly as possible.
A chiller is dropped into the just cooked wort. (wort is the beer before fermentation).
It goes from steaming hot to room temperature very quickly.
It's just a spiral pipe that you run cold water through.
Sounds like you need something like that for a potato.
I present the Macro Wave!
Removing heat energy is what your freezer does, by transferring it outside of the freezer box.
You canβt just remove heat by adding electromagnetic energy. Absorbing energy from the electromagnetic radiation makes heat.
Edit: whelp, TIL
You canβt just remove heat by adding electromagnetic energy.
Except that you can.
The magnetocaloric effect can do this. Instead of the target absorbing energy, the magnet does. The magnet heats up and the target cools.
These are all word for word the same answers to the not poop for 3 days quest.