Cider is stored and fermented in wooden barrels, carboys, stainless tanks, or glass jugs. Glass carboys and sanitary plastic pails are often seen in the facilities of a micro-winery. Traditional carboys, ceramic bottles or oak barrels are typically used. Sizes range from small single serving bottles to large carboys for water coolers. The size ranges from very small bottles to large carboys. The size ranges from very small sample bottles to very large carboys. Carboys are primarily used for transporting liquids, often water or chemicals. Polypropylene carboys are also commonly used in laboratories to transfer purified water. Carboys are also used to collect and store waste solvents. Carboys come in various volumes ranging from .