Since the chafing fuel (wick heat) [BQ-Series] uses diethyleneylycol as its fuel, its heat efficiency is 20% higher than that of the conventional jelly-type fuel of an alcohol-line. Compared with the solid-type fuel of the solid alcohol-line, this chafing fuel [wick heat] is a highly refined product with no toxicity, no odor during burning and little fire risk. Besides it is a low cost product given its burning duration. Much safer, Much cleaner and More Efficient This product, as a liquid fuel, is very easy to use. (Compared with the solid-type fuel of the alcohol-line, this product poses virtually no fire risk). 1, Where to be used: hotels, buffets tables, restaurants etc. 2, Usage: warming chafing dish and food.