If you want to drink soup, of course you must add water. If you are just making braised pork, it is recommended that you only add a very small amount of water, about half a cup less than the measuring cup of the electric pressure cooker is enough.

Because the electric pressure cooker does not exhaust steam during the entire operation, water will not be lost, so it can be done without or with less water. It is recommended that you put a small amount of water, mainly to prevent the meat from sticking to the bottom or the meat touching the bottom from becoming scorched. But generally not.