Most all of it is, even from US companies, but customers still often use the imperial shorthands of pints, quarts, fifths, half gallon, and gallon. Everyone I k

Most all of it is, even from US companies, but customers still often use the imperial shorthands of pints, quarts, fifths, half gallon, and gallon. Everyone I know just doesn't care that it isn't precisely correct, its all relative due to varying alcohol content anyways.