In fact, the longer you cook the porridge, the easier it is to hydrolyze the starch into dextrin, and the softer it tastes. Therefore, cooking porridge is generally 30 minutes to an hour or so, if you want to make the porridge more soft and sticky, a little longer is fine. If in the porridge, add some other coarse grains or other ingredients, then the porridge cooking time may be longer, so you can specifically according to the amount of porridge and the amount of ingredients inside, specifically what ingredients, to decide to cook porridge time, pay attention to observe. Anyway, as long as the water does not boil dry, the longer you cook, the better the taste is actually more thick.