Spring Festival: How to use the pressure cooker safely?

Hardware knowledge commonly used in life: How to use the pressure cooker safely? 1. Before using the pressure cooker, first check whether the exhaust pipe hole is unblocked, whether the safety valve is normal, and then cover the pressure cooker lid. Press the lid on the lid or handle to close the lid until the two handles are completely overlapped. . 2. There is steam in the pressure cooker.

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