[QUESTION] When making soups, exactly how important is it to cover the pot?
Hey all,
Sorry to flood the community, just been working a lot about getting acquainted with the kitchen as of late, and learning more about navigating and utilizing it.
In three cookbooks, I've come across four recipes for soups I'm wishing to try. One for Borscht, one for Minestrone, one for a lentil soup, and one for Cauliflower soup. While I have the needed ingredients for these recipes, all of them call to cover the pot as the ingredients and/or soup are cooking.
My problem is that my pots don't have lids. When I first got the one pot, it came with one, but I can't recall what happened to it, all I know is that I no longer have it. I've brought the one pot to the thrift shop seeing if any of the loose lids there fit, but they were either way too large, just too small, or were perfectly sized, but refused to sit stable.
I was wondering how important it is to cover the pot as the soup and/or ingredients for the soup cook. Are there any consequences for not covering the pot, or does it simply take a longer time for cooking to finish?
Keep it on until the water boils. Then:
When the consistency of the soup is right, cover the pot.
When it's too thin, leave it uncovered so the surplus water can boil off.
When it's too thick, no it isn't!
Without a lid, you lose more water and heat, so it'll take longer and cost more energy to get the soup to temperature and maintain that temperature, as well as to heat up the extra water that replaces whatever has evaporated. But it's perfectly doable.
Some stores sell these one-size-fits-all lids that are basically like an inverted dome. Also sometimes sold as "universal pot lid". A poorly fitted lid is better than no lid in my opinion. You'll probably save on the energy costs with just a few uses.
The two issues with making soup without a lid: heat loss and evaporation.
The first is important as the soup must simmer, not boil. With a lid, you can easily create a mostly uniform heat, without it will probably be too cold at the top, and, as you have to feed more heat, it will most likely be too hot at the bottom.
The second is not unimportant, as you usually cook a good soup for quite some time (my beef broth takes about a day), so evaporation will be quite relevant to the overall consistency of the soup, too. Adding lost water will also add to the temperature inconsistencies.
Do you have a non plastic plate that is larger than the opening of the pot? Then you have a lid! I used to have cookware I purchased from thrift stores and yard sales. Some had lids, some did not. But a plate works. Hell even a cutting board (careful if it is wood, mine are bamboo and dishwasher safe) works.
I have some stoneware plates that are from IKEA. My worries with using a plate were both the heat potentially cracking and/or breaking the plate, or the pot boiling over while the contents are hidden underneath unlike with a glass lid.
You generally aren't cooking soup at a boil with the lid on, just at a simmer. At that temp there shouldn't be an issue. If you are still concerned about it though you can usually find the heat tolerance of your cookware online.