We described each part of the pressure cooker earlier, and detailed how each plays a role in pressure cooker safety as well.
So, to review, you are the first pressure cooker safety system: NEVER OVERFILL THE PRESSURE COOKER. Remember:
- Max 1/2 Full: rice grains and beans (and their cooking liquid)
- Max 2/3 Full: everything else
That ensures that nothing interferes with the lid of the pressure cooker, which is where most of the other safety systems are. Also, check that the primary valve is clean and clear before pressure cooking.
If something were to go side-ways, even before it gets to that point, the pressure cooker itself will detect that the pressure (temperature) inside is too high and turn off the pressure cooker. But, while that’s happening, though, the food inside is still boiling and building pressure so the cooker will release excess pressure from the valve on the lid. And, if the main valve were to be clogged the cooker will release pressure from the lid-lock or secondary valve. If that were to be blocked, the cooker will release pressure from the gasket.
The last safety system of for absent-minded cooks like me. Where at the last minute I realize, “Oh, I need to add some carrots” and try to open the pressure cooker during cooking. Well, the lid locks automatically the minute pressure starts to build. It means that if there is any pressure still inside the cooker, you cannot open the lid. It’s a mechanical system so even if there is no electricity you will still be prevented from opening the lid.