Wash with dish detergent before using the first time. / Do not use a scrub brush or polishing powder. / Do not use dishwashers, dish dryers. / This product is not fully airtight. / Do not use in an oven, toaster oven, or microwave oven. / Do not use in freezer. / Do not stand the product horizontally. / Do not leave content in the product for prolonged periods. Doing so may result in deterioration of the quality or color as well as staining of the product. / Do not let thinner, benzene, alcohol etc. remain on the product. / Immediately discontinue use if the product becomes deformed or damaged. / Keep away from fire and other sources of heat. / Do not use this product for purposes other than its intended purposes.