Decoding the mystery of pressure cookers
Number one: There are no mysteries, just simple physics. But as we in the Gun Community know, most accidental discharges are negligent ones and the same applies to cooking with pressure. Almost all my experience is with old school Presto pressure cookers and I am not addressing any other brand
The designers of pressure cookers are not that dumb. They have designed the pot with several safeties and it is only when you don’t do the basic maintenance that people get hurt.
This is going to be lunch today. A simple Cocido Gallego” which is chickpeas with a Spanish chorizo and other goodies later to be added.
Almost all the safety features will be in the cover of the cooker. Those with artillery backgrounds should immediately notice the cover and the pot itself are like a breach to hold the pressure inside and that is safety measure one.
Now, the cover:
Rule #1 of safely using a pressure cooker is to KEEP THE VENT PIPE CLEAN! Just like you would to a safety check on a firearm to see if there is a round in chamber every time you pick it up. If you are Colonel Cooper-religious about this, you are pretty much safe. Keep it clean and make sure before cooking that steam has a way to get out. If you don’t have a brush small enough, a length of solid copper wire can be used to clean the inside. Blow on it but remember it is not a straw but a precisely designed tool to release a specific amount of pressure that will be controlled by the pressure regulator (AKA bell or maraca), something like this:
You may have noticed a black nipple looking thing near the vent pipe. That would be the overpressure plug and it is designed to save the lives and the kitchen of the idiots who did not check the vent pipe for obstructions and cooked anyway. Its mission is to fail first and dramatically, releasing the inside pressure. It will leave a mess behind, but liquid can be cleaned while shrapnel is a bit more long-lasting and very harmful.
This is the result of a working overpressure plug looks like and no, it is not a pressure cooking exploding like the title says but what a safety device looks when it does its job. Mop beats tourniquet.
It is a different make and model, but the principle is the same.
And last but not least, specially after seeing the first video, is the cover lock. It is also pressure activated and it locks the cover against the pot so morons do not go on and try to unlock the cooker while it is still under pressure. It is the equivalent of pin that holds the grenade’s spoon. Also always make sure it moves freely and that it locks in position when pressure starts to build.
I promised a post with my recipe for black beans and since I will have to use the pressure cooker, I will make a video or two on a couple of other things so you can remove most of the fear that comes with pressure cookers or at least the irrational ones. I know people freak out at the constant noise of the steam being released and it is why they don’t cook with a pressure cooker, but you need to treat pressure cookers like a toddler: If you don’t hear a thing, trouble is about to happen.