Culinary sayings and myths

One should cover a pan while heating

Step by step recipe:


  1. 2 min.One should cover a pan while heating : Photo of step #11 litre of water is measured and poured into a pan without the lid and put on the hob with a thermometer in it.

    Starting temperature of water (and room): 70F (19C).
  2. 9 min.One should cover a pan while heating : Photo of step #2The heat is switched on. The water reaches 210F (100C) in 9 minutes and 30 seconds.
  3. 1 hourOne should cover a pan while heating : Photo of step #3The hob is left to cool for about one hour, to allow it to reach room temperature again.

    Another 1 litre water is put in the same pan covered with the same thermometer in it, on the same hob.

    Starting temperature of water (and room): 70F (19C).
  4. 9 min.One should cover a pan while heating : Photo of step #4The heat is switched on. The water reaches 210F (100C) in 9 minutes and 27 seconds.
  5. One should cover a pan while heating : Photo of step #5The result is shown more clearly in the diagram: the temperature of the uncovered pan in red and that of the covered pan in green.

Remarks:

The time difference is too small to be significant. It really doesn't matter whether the pan is covered or not.

Source:

One should always cover a pan while heating, so that it boils faster.

Grade this recipe

Grade this recipe