Pure ethanol refers to a type of alcohol that has been isolated and is free from any other substances. It is a highly concentrated form of alcohol that is commonly used as a fuel, solvent, or in the production of alcoholic beverages. Full definition
In the most conservative countries, low - risk consumption means drinking no more than 10 g of pure ethanol per day for women, 20 g for men. (sciencedaily.com)
Would an engine designed for pure ethanol (higher cylinder pressure etc.) not result in cleaner combustion? (mechanics.stackexchange.com)
They work for water, wine and even pure ethanol. (sciencedaily.com)