sour mash
noun
a blended grain mash used in the distilling of some whiskeys, consisting of new mash and a portion of mash from a preceding run and yielding a high rate of lactic acid.
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Nearby words
sour cream, sour dock, sour gourd, sour grapes, sour gum, sour mash, sour on, sour orange, sour salt, sour-milk cheese, sourball
Origin of sour mash
An Americanism dating back to 1880–85
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for sour mash
sour mash
noun US
a grain mash for use in distilling certain whiskeys, consisting of a mixture of new and old mash
any whiskey distilled from such a mash
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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