This site uses only a few technical cookies necessary for its operation. By continuing to browse, you accept their use.
To find out more...
To find out more...
One should always cover a pan while heating
Tradition says: "One should always cover a pan while heating".
In other words, if you heat water (or something else), it comes to the boil faster with a lid on the pan than without.
True or false? Let's try the experiment...
In other words, if you heat water (or something else), it comes to the boil faster with a lid on the pan than without.
True or false? Let's try the experiment...
1 hour 20 min.
Easy
Last modified on: July 25th 2017
Times for this recipe
Preparation: 2 min.
Resting: 1 hour
Cooking: 20 min.
All in all: 1 hour 20 min.
If you start now, at , you will finish around : ?.Change start time
To finish around 7pm, you'll need to have started before: .Change end time
Step by step recipe
Stage 1 - 2 min.
1 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): 70°F (19°C).
Starting temperature of water (and room): 70°F (19°C).
Stage 2 - 9 min.
The heat is switched on. The water reaches 210°F (100°C) in 9 minutes and 30 seconds.
Stage 3 - 1 hour
The 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): 70°F (19°C).
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): 70°F (19°C).
Stage 4 - 9 min.
The heat is switched on. The water reaches 210°F (100°C) in 9 minutes and 27 seconds.
Stage 5
The result is shown more clearly in the diagram: the temperature of the uncovered pan in red and that of the covered pan in green.
Conclusion
False: The time difference is too small to be significant. It really doesn't matter whether the pan is covered or not.
Source: Homemade.
Other recipes you may also like
French croissants
In this famous and highly technical recipe from a piece of yeast-based flaky dough we are going to cut and shape ("roll") croissants. June 26th 2019639 K 24.4 2 hours 35 min.
Almond cream
Light and delicious, it is used in a lot of desserts like tarts, cakes and pies (epiphany galette). August 31th 2025473 K 25 20 min.
New tiramisu
This new version of tiramisu is easier, and in my opinion much better. You will certainly appreciate, like me, the light creamy taste, this time presented in brandy goblets. January 19th 2015403 K3.3 55 min.
Lumberjack turnovers
These are small stuffed bread turnovers (similar to calzone), made with fougasse dough and filled with bacon, mushrooms, onions, cheese and tomato sauce. Lovely and golden-brown after baking, they are best eaten hot or while still warm. May 10th 2023126 K5 3 hours 45 min.
Pancake batter
Here is a pancake batter that is a little more sophisticated than the traditional version. The pancakes will be tastier with a softer texture. February 2nd 2020358 K3.8 15 min.
News list of cooking-ez.com
Sign up to receive the latest recipes (next batch due to be sent on 2025-09-21)
Note: We'll never share your e-mail address with anyone else.
Follow this recipe (as 2 people already do)
If you are interested in this recipe, you can "follow" it, by entering your email address here. You will then receive a notification immediately each time the recipe is modified or a new comment is added. Please note that you will need to confirm this following.
Note: We'll never share your e-mail address with anyone else.
Alternatively: you can subscribe to the mailing list of cooling-ez.com , you will receive a e-mail for each new recipe published on the site.
The 1 comment already posted on this recipe