I have kept it unopened. (Product Description) Just "pop" it in, and the dirt is gone! A smart detergent that also considers the environment. This convenient tablet type requires no measuring, just put it in the dishwasher. It boasts high cleaning performance while being environmentally friendly with its BioQuest formula, removing rice grains, oil stains, milk and cheese, and protein stains from meat, fish, and eggs, as well as removing tea stains and cloudiness from glassware. It is phosphate and chlorine-free, and 90% of the ingredients are derived from plants and minerals. * If shipping via Nekopos, you can get a 400 yen discount, so please comment in advance. Thank you for viewing.