Wash with dish detergent before first usage. / Do not use a scrub brush or polishing powder with this product. / Do not wash with dishwashers or 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 leave on its side. / Do not leave the container carrying some products for a long time. It will cause coloration of the bottle. / Do not let thinner, benzene, alcohol etc. remain on the product. / Do not fill with boiling water. / Do not fill with carbonated drinks, dry ice. / Keep away from fire and other sources of heat. / Do not use this product for purposes other than its intended purposes.