This product is a specially designed destainer for plastic, china, stainless steel and all kitchenware. Rapid wetting action penetrates into pores of tableware and releases powerful oxygen destaining agents. Coffee, tea and other food stains have no chance against this highly active product. This product is best used by pre-dissolving in hot (120˚-140˚F) water. Mild agitation to the solution aids the stain removal action.