Method of cleaning a washing machine or a dishwasher

摘要

The present invention relates to a method of cleaning the interior surfaces of a non-loaded washing machine or a non-loaded automatic dishwasher with a liquid composition, by forming in said washing machine or automatic dishwasher an aqueous liquor comprising water and said liquid composition, wherein said liquid composition comprises an acid system comprising formic acid and an acid forming a slightly water soluble calcium salt.