Peacock Double Cock Keeper (Water Jug) 9.5L uses a hard polyurethane foam insulation to keep you cool and warm for longer. It can be used for a wide range of occasions, from household hydration to sports, leisure activities and outdoor work. Even a large number of people can fill them at the same time with two cooks, saving time. [About use] Do not put carbonated drinks, miso soup, or dry ice. *The contents of the container may be damaged, discoloration, corrosion, etc. Do not use near precision machinery such as computers, mobile phones, digital cameras, etc. Please note that tea scum or solid objects may interfere with the flow of the cook. Please tighten the nut part inside the container if there is a leakage of drink. *Please note that overtightening may damage the nut. Cook is consumables. Replacement available in Peacock Thermos Industry Care Instructions: Do not use bleach. *It may cause rust or puncture damage. Do not use thinner, benzine, metal scrubbers, scrubbers, scrubbing powder, cleansers, chemical sugar, non-kitchen cleaning detergents, or bleach. *This may cause damage to scratches, rust, etc. The main unit cannot be washed. * It can cause water to enter and rust or stain other items. When not in use for a long time, please clean it carefully, remove dirt, dry thoroughly and store away from high temperatures and humidity.