The service life is calculated by using 1 hour per day, and its service life is 8 years. Generally speaking, the pressure cooker used more than 5 years, the safety hazard is greater, in order to ensure safety is recommended to stop using and replacement. The sealing ring should not be used for more than two years, to be replaced regularly, and pay attention not to install the wrong.

Pressure cooker, also known as pressure cooker, pressure cooker, is a kitchen cookware. Pressure cooker through the liquid at higher air pressure boiling point will be raised this physical phenomenon, the pressure on the water, so that the water can reach a higher temperature without boiling, in order to speed up the efficiency of stewing food. It can be used to heat the food to be cooked to more than 100°C. In high altitude areas, the use of pressure cookers can avoid the problem of water boiling point lowering which makes it difficult to cook the food. The advantage is that it saves time and energy, the disadvantage is that it may explode and cause injury if it is not operated correctly or is defective.

Pressure cooker classification

1, from the energy: ordinary energy pressure cooker and electric pressure cooker 2 kinds of.

2, from the raw materials: generally divided into aluminum alloy and stainless steel 2 kinds. Aluminum alloy is more affordable, the surface of the oxide layer to avoid breakage, can be quickly cooled with cold water; stainless steel corrosion resistance.

3, capacity specifications: generally 18, 20, 22, 24, 26 cm several models. But to be considered from the thermal efficiency, large efficiency.

4, generated pressure points: 70 kPa (170 kPa), 80 kPa (180 kPa), 90 kPa (190 kPa). Work pressure is also more destructive to nutrition.