1. Apply flour evenly on the surface of the lid, the amount of flour depends on the degree of grease, generally can be spread all over the lid.

2. After 10 minutes of resting, sprinkle a small amount of edible salt, the role of salt is to increase the friction, and there is a certain role of sterilization.

3. The last with a damp cloth to wipe the lid on it, focusing on the heavier corners of the oil, wipe after two rinses with water, the lid can be shiny as new.