How to clean clothes stained with chocolate sauce:

1. Sprinkle 20 grams of edible alkali into the basin (edible alkali has a cleaning effect and can remove chocolate dirt on clothes).

2. Pour 15ml of white vinegar into the basin (white vinegar contains acetic acid, which can decompose chocolate dirt on clothes).

3. Soak the clothes stained with chocolate sauce in a basin for ten minutes.

4. Wash the areas stained with chocolate sauce repeatedly.

5. The chocolate sauce on the clothes has been washed off.