This product is not fully airtight. / Do not fill with hot water or drinks.Wash with dish detergent before first usage.Do not wash with dishwashers or dish dryers.Do not use a scrub brush or polishing powder with this product.Do not fill with carbonated drinks, alcohol or dry ice.Terpene contained in citrus fruit peel and oils can cause deterioration.Do not use in an oven, toaster oven, or microwave oven.Do not use in freezer.Do not leave on its side.Stop using this product immediately if it becomes damaged.Keep away from fire and other sources of heat.Do not use this product for purposes other than its intended purposes.