5 Gallon Copper StillCopper Still (5 Gallon) Distill your own water, essential oils, and ethanol fuel at home. This still is hand built with lead free materials, solid copper rivets, and 20ga. (. 034) copper sheet materials. Distilling alcohol without permits or licensing is illegal in many countries, including the United States. Stills can also be used to produce essential oils, vinegar, purified water and engine fuel (requires permit in USA). It is the customer's