Is denatured alcohol the same as methylated spirits?
Methylated spirits are a type of denatured alcohol. Denatured alcohol is any grain alcohol that has been rendered undrinkable by adding other chemicals. If the additive is methanol, then it is often given the name “methylated spirits”. In the cosmetics industry, various chemicals are used that are not toxic. For example, denatured alcohol designated as “SD Alcohol 40B” contains a very small quantity of denatonium benzoate, an extremely bitter substance.