Show Whisky Term The mixture called per pet cent proof Is less than 50 per cent of spir spir- its The rhe volume of at water Is about The origin of the term proof spirit Is interesting Formerly It was customary to test the strength of ot spirIts spirits spirits spir spir- its by pouring a sample on gunpowder If It when a n light was applied the alcohol al alcohol alcohol al- al cohol burned away and left the powder powder pow pow- der de so damp that it could not be set seton seton seton on fire the spirit was declared to be under A sample Just strong enough to Ignite the powder was called proof goof f |