Not totally all cookers are manufactured the same way and they've various features. For instance, think of simply how much food you generally make and just how many teeth you usually feed. Pressure cookers have various measurements and you will be able to decide on one that is perfect for your needs. In the event that you often make for 2-3 then a four-quart one is enough. And if you intend to make for more individuals, then you will need a larger one. You may even several different measured cookers if you'd like because there are a few manufacturers that offer economical good quality ones.
Metal kinds can perform heat greater but they could answer acidic food like tomatoes. They're also easily damaged and damaged so you need to be more careful with them. If your allowance lets you choose the metal types, I suggest you have them and choose one with a foundation that's a level of metal in the center. It will help improve heat conduction so you may get the benefits of the two forms of food cooker within a one.