For washing the inside of the electric kettle and dishwasher! Natural Cleaning! It is citric acid, a cleaning agent that decomposes, neutralizes, and removes alkaline stains with the power of acid. It is especially effective for alkaline stains such as water stains, and is effective for soapy stains around the kitchen, washroom, bathroom, etc. < Usage> ● Removing hot water from electric kettles and electric kettles ● White stain removal in the dishwasher cabinet ● For cleaning the filter of the humidifier ● Faucets (faucets) and bathroom mirrors ● Deodorization of ammonia odor after toilet ● Finishing agent for soap laundry * Citric acid is an organic compound contained in citrus fruits and is mainly used as a food additive because it has a refreshing acidity. It is also an ingredient that is used in cleaning products and fertilizers. (*This product is not for food use.) ）