Just to make sure we keep the record straight, it is "Ethanol" that must be "Denatured" by law in order to be sold commercially for purposes other than human consumption. "Methanol" is naturally poison and will cause blindness if taken internally (It needs nothing added to keep you from drinking it other than the knowledge that it can blind you and other very serious health issues). Ethanol is the alcohol found in Liquors, Wines and Beer etc.