The 3 types of alcohol are ethyl, methyl, and isopropyl.
Ethyl Alcohol
Ethyl alcohol is safe for human consumption and is found in alcoholic drinks like beer, wine, spirits, and liquors. The amount of alcohol varies in these drinks.
Methyl and Isopropyl Alcohol
Methyl alcohol is used in manufacturing products like antifreeze, paint remover, and windshield wiper fluid. Isopropyl alcohol, also called rubbing alcohol, is used to sterilize surfaces, tools, and skin.
Drinking any amount of isopropyl or methyl alcohol can be dangerous and fatal. Only ethyl alcohol can be safely consumed by humans, but drinking too much causes drunkenness and alcohol poisoning.