1, put the new casserole soaked in water for 3-4 hours, so that the new casserole to absorb enough water.

2, the new casserole filled with water to cover the lid, boil the water and let it cool naturally, so that the casserole can be heated and dissipate heat evenly.

3, with a towel to wipe the casserole can be.

4, the new casserole will be treated, you can rest assured that it can be used.