Hehe ... Don't worry. This has nothing to do with the pressure cooker, but something is wrong with your use. First of all, you should make it clear that the cooking method of porridge is small fire. Small fires have two purposes. One is to make the rice soft and rotten, and the other is to increase the consistency while the rice is soft and rotten. Look at the use of the pressure cooker. In fact, you have only done the first step, and the second step has not been completed, so the porridge you cooked will be like water. The solution is:

1. Cook the rice in a pressure cooker until it is soft and rotten.

(but it can't be too soft and rotten, because it needs a big fire to burn again. )

2. Cook the cooked rice and the original soup on the fire to thicken the rice soup.

It should be noted that the amount of water should not be too much or too little. If there is too much water, the time of the second step will increase. If there is too little water, there will not be enough water for the second step, so adding water to porridge in the middle will not be fragrant. So we should control the water quantity. I can't give you the exact amount, because it's all by feeling.