1, 5 to 8 minutes or so. Under normal circumstances, ripening only takes about 5 minutes, because the pressure cooker has a great internal pressure due to its special working principle, so it doesn't take a long time, but this time of 5 to 8 minutes refers to the time after the pressure cooker is started. After cooking, don't worry about opening the lid of the pressure cooker. Only after the gas inside is removed can the lid be opened safely.

It's easy to cook jiaozi in a pressure cooker. Pour half a pot of water into the pressure cooker, turn it over twice with a spoon after boiling, then put it into the jiaozi, cover the lid tightly, use strong fire without locking the valve, wait for steam to spray from the valve hole, turn off the fire for about half a minute, and then wait for the valve hole to stop smoking and take out jiaozi.