This product is not fully airtight. Do not tilt it. If you put liquid in it, liquid may leak. / When you change the food contained in the product, make sure to wash the product once using dish liquid.Wash with dish detergent before first usage.It may retain the color or odor of food.Keep away from fire and other sources of heat.Do not use a scrub brush or polishing powder with this product.Do not wash with dishwashers or dish dryers.Do not use in microwave.Do not use in freezer.Do not use this product for purposes other than its intended purposes.