General instructions
For simple reusing rinse the sponge thoroughly in warm clean water, squeeze any excess of water and leave it to dry.
If you want minutely cleaning, use a natural, chemical free sap and soak for few minutes in a cup, ad few drops of tea tree oil, then rinse in clean water, squeeze and dry naturally. Instead of tea tree oil, you can use a pinch of sea salt or a teaspoon of vinegar in a cup of warm water.