The time depends on the weight of the ribs, the amount of meat they have, their size, the texture you are trying to achieve and the recipe that you are following. For example, using this kind of pressure cooker with 8 pounds ribs may take about an hour or a little more to cook the meat thoroughly. If you want to make it tender and juicy, you will need to cook it for less time. It also depends on the gas release you choose for the cooking process.
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