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sour mash

noun

Definition of sour mash

: grain mash for brewing or distilling whose initial acidity has been adjusted to optimum condition for yeast fermentation by mash from a previous run

Examples of sour mash in a Sentence

Recent Examples on the Web

 Instead, from the first batch, Kilburn and co. used a completely clean, stable source of yeast without having to add in any sour mash—a process called sweet mashing. — Andrew Daniels, Popular Mechanics, "Make This Flavor-Packed Old Fashioned for Memorial Day Weekend," 24 May 2019

First Known Use of sour mash

1877, in the meaning defined above

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