The Food Lab: Better Home Cooking Through Science

(Nandana) #1

your hands to get rid of excess flour. From there, it goes
straight into a wok (or Dutch oven) full of hot oil.
Finally, it’s important to make sure your beer is ice-cold,
for three reasons:




  1.  Cold    liquids hold    their   carbonation better.


  2. Cold liquids inhibit the formation of gluten.

  3. The recipe only calls for 1 cup of beer, so you’re
    gonna have to drink the leftovers.


CAN OIL BOIL?


We’ve all heard the phrase “boiled in oil,” and


we’ve   certainly   seen    a   pot of  oil bubbling    vigorously
when you add food to it. But can oil truly boil?
Technically, yes. Practically, no. Boiling, as we
discuss here, is the conversion of a liquid to a gas.
Depending on how tightly their molecules are stuck
together, various liquids boil at various
temperatures. Water boils at 212°F, while extremely
volatile liquid nitrogen boils at negative 320°F! The
boiling point of oil is far greater. In reality, oil
begins to smoke and will eventually catch on fire
long before it can possibly reach its boiling
temperature. The smoke point (the temperature at
which wisps of smoke begin to appear above the oil;
see here) and the flash point (the temperature at
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