Ribs cooked for 20 minutes are not cooked.
Cooking ribs in a pressure cooker takes less time because the pressure in the cooker is very high and the temperature you can reach is higher than the boiling point of 100 degrees at room temperature, so you only need to continue cooking on high heat for about 20 minutes after you start to get gas to cook the ribs. A regular pot will take longer, about 30 minutes.
If you just want the ribs to be cooked, half an hour is usually enough, but to boil out the nutrition of the ribs, it is best to take an hour and a half, because the bones contain a lot of nutrients that must be boiled out in order to make the soup flavorful, so the ribs will be cooked for 20 minutes of time is relatively speaking a little short, and also did not reach a very ripe situation.
Ribs storage method:
Fresh ribs if you need to save for a long time, you can chop the ribs into pieces of the right size, put into a pot of boiling water to blanch for a while, fish out of the cold water, cool, control the water, plus a little shaoxing wine mix well, wrapped in a plastic bag, put the refrigerator freezer freezer to save, generally can be kept fresh for 1 month. The first time I saw it, it was a very good one, but I didn't realize it was a very good one.