One, ordinary pressure cooker:
Don't open the bleeder valve first. Just cook something, the pot is still very high air pressure, will be the top of the bleeder valve (pressure limiting valve) up, will be bared the bleeder sound. Wait until the pressure cooker quiet down and then open the bleeder valve (pressure limiting valve) is the red one on the cover, you can remove the 6 pot lid can be opened.
Two, electric pressure cooker:
The pot lid has a venting valve is also known as the pressure-limiting valve, which is composed of a specified mass of iron and a plastic lid with a small handle. Cooking, loaded with ingredients and water, it will be dialed to the "seal" position, its role is not to give the pot of water vapor discharge, so that the pressure inside the pot increases, then the float valve will automatically rise; so that the food is cooked under high pressure.
When done, the electric pressure cooker will automatically enter the heat preservation state, wait until the float valve will automatically fall after you can open the lid. In addition, you don't have to unplug the valve after cooking, but you should unplug the valve to clean it after using it for a while.
Generally, there is very little venting of the pot, and the lid can only be opened after the float valve has fallen off automatically after cooking. Unless you have no choice but to exhaust (such as soup and drink in a hurry), exhaust the exhaust valve (pressure regulator) to the "exhaust" position can be adjusted, you can also use a chopstick to exhaust the valve (pressure regulator) to pick up until the exhaust can be completed, can be.
Expanded
Pressure cooker precautions:
1, regular inspection: check the pressure limiter valve, float valve, check the pressure cooker can be buckled in place, cover the gasket yellowing whether, once found to have a blockage immediately cleaned up the discovery of the mouth of the mouth is not tightly closed on the temporary not to be used, buckled tightly will be leaking, take to the maintenance! Or no longer used, yellowing gasket to be replaced.
2,? Note: Remember not to load too much food, food from the edge of the pot to leave a proper gap. Make sure the air restriction valve is not blocked before closing the lid, and fasten the pressure cooker tightly before firing.
3.? After the rice is cooked: don't rush to open the pressure cooker, wait for the high pressure gas to be fully released that is, wait for the pressure cooker to cool down before you can remove the pressure limiting valve and open the lid.
4,? Wash the pressure cooker: If the rice inside the pot is relatively hard do not take, to soak up water, and then use a piece of cloth or sponge and other soft brushing supplies brush to protect the inner surface of the pot to protect the protective film, can not use a steel ball brush, the protective film, once brushed off the rice will be easy to stick to the pot, and it will reduce the service life of the pressure cooker.
5,? Use time: the use of pressure cooker time is generally not more than 5 years, to 5 years for the upper limit. If the use of time is too long, the pressure cooker will be aging, it will be unsafe to use, remember not to use overage.
Reference
Baidu Encyclopedia-Pressure Cooker