Our cleaning powder contains citric acid and sodium hypochlorite. It is stain resistant, easy to clean and environmentally friendly. Its use method is very simple: 1. Take a proper amount of cleaning flour into the water, soak the pot in the water for a few minutes. Gently wipe off the stain with a clean rag. 3. Rinse off the foam with clean water. And can prevent dirty easy to operate, the effect is durable.