A. It is not sold in a retail shop. To buy the product, ask through inquiry.
A. Minimum sales unit is from 1 kg.
A. Because ingredients are registered as food additive, it is enough safe to use in restaurants and kitchen. But do not spray directly on food.
A. Depends on dirtiness, change additive ration of the product.
A. 10-20g is for 1L water. The water can be used repeatedly until it become dirty. When its' effectiveness is decreased, add the powder into the water.