The pressure cooker works to optimize the cooking of food. That's because she manages to increase the temperature of the liquid that is in it much faster, thus reducing the time to cook, as well as the use of gas. For this, it is necessary that there is steam, responsible for pressurizing the pan.
For this process to be done correctly, the pans have a safety valve and a lateral safety system. However, none of this may help you if you cook foods that should not go in the pressure cooker!
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Read more: 3 necessary precautions you should take when using the pressure cooker
Foods that should not be cooked in a pressure cooker
Pressure cooker users need to understand the mechanism of use so that the whole process is safe. Among the basic principles is that the pressure should be increased gradually and in a controlled manner.
Therefore, you should avoid anything that could explode inside the pot or release a lot of gas. Therefore, we have listed some foods that symbolize danger, precisely because they go against the safety principles of the pot:
Condensed milk in cardboard box
Dulce de leche is produced from condensed milk cooked at high temperatures and for a long time. What many people don't know, however, is that the condensed milk carton can explode if it is not inserted in the correctly, due to the difference in pressure between the pot and the can, a factor that causes the packaging to melt. cardboard. In this way, preferentially opt for the aluminum can.
However, if you only have the box packaging, follow these instructions: wrap the entire box with aluminum foil, then fill the pot with enough water to cover the box wrapped in foil. aluminum. From there, cook as normal.
carbonated drinks
Many recipes are created from unlikely combinations and dubious experiments. However, we can assure you that it is not a good idea to put any carbonated packaging in the pressure cooker! Upon heating, gases expand and increase the pressure in the container. This can cause the beverage packaging to explode and, shortly thereafter, an even bigger explosion of the pressure cooker!
Meats with large cuts that are frozen
Microwave ovens often have the “Defrost” option available. If you don't have one, there are other options: let the meat thaw in the fridge overnight, or let the meat thaw on a table for a few hours. No matter the means, putting frozen meat in the pressure cooker may not be the best option.
While frozen vegetables can be cooked without major problems, frozen meats – especially large pieces – can expand beyond the pot's maximum capacity. Accidents can happen when this maximum limit is exceeded!
Barley, oats and dried peas
Dried peas are a grain, barley is a cereal, and oats are a whole grain. What do they have in common? All, when subjected to high temperatures, release a lot of foam. This foam will increase the pressure in the pan. As a consequence, the pressure may increase to uncontrolled levels, considerably increasing the risk of explosion. Therefore, take special care with these foods, especially peas – which are often used to prepare soup.