The invention concerns a method of producing acetol by the dehydration of glycerin at high temperatures. The method is applicable on an industrial scale and gives high yields and high conversion rates. The invention calls for glycerin to be reacted with a heterogenous hydration/dehydration catalyst, containing an element of the first and/or eighth sub-group of the periodic table, at temperatures between 180 and 400 DEG C, to give acetol and water.
