Usage of two inner pots of SUPOR rice cooker
SUPOR rice cooker is only one liner, you are not mistaken, the pressure cooker is two guts
In general, the ordinary nonstick coating is used for cooking and porridge making, and the starch sticking problem of food heating can be avoided. But a hard liner or coating material, is to give you the stew, stew. Because you might put bones, clams, and other hard ingredients into it, and if you use a soft inner liner (though soft but not sticky), melt and scratch the coating.
A rice cooker and an electric pressure cooker are usually lined with double tanks. Usually an inner liner is nonstick, and an inner tank should be made of steel or other hard coating.