The best materials to use with 200 proof ethyl alcohol (ethanol) would be anything that has excellent chemical compatibility and/or is a non-reactive material. Non-reactive materials are materials used to store or hold chemicals, food, and fuels without risk of a dangerous or adverse chemical reaction. Examples include acetal; glass; and certain plastics, such as high-density polyethylene (HDPE), which is what our bottles are made of. Find a longer list of compatible materials, as well as materials that are not recommended, here.