Bacardi 151 is an over-proof rum. The 151-proof liquor has an alcohol content of 75.5%.
Due to its high proof, it is typically used as a component in cocktails (whose final alcohol concentration may or may not be greater than that of drinks made with conventional rum). Bacardi is the only manufacturer that uses a flame arrester on the bottle.
Due to the high alcohol content in Bacardi 151, the spirit is flammable at room temperature and is used in cocktails such as flaming B-52s.