It usually takes/kloc-0.5 to 20 minutes to cook ribs in a pressure cooker. Wash the ribs and put them into the pot. It is advisable to submerge ribs for more than two centimeters or not to exceed the highest water level of the pressure cooker. Put the pot on the stove, don't cover it, boil it over high fire to remove floating foam, add seasoning, and add seasoning according to your own taste. Put a proper amount of salt, drop a few drops of vinegar, cover it, and put the upper pressure limit valve until the pressure limit valve is deflated, and start timing. When the pressure limiting valve starts to deflate, just turn the fire to the pressure limiting valve to deflate. The time for stewing ribs in pressure cooker is 15-20 minutes, and it is naturally cooled. When there is no steam discharged from the pressure limiting valve, remove the pressure limiting valve before opening the cover, and that's it.