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.

sour mash

noun

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

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Word History and Origins

Origin of sour mash¹

An Americanism dating back to 1880–85

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Example Sentences

Examples have not been reviewed.

It’s not a single malt from a verdant Scottish glen, nor a sour mash bourbon from the hills of Tennessee.

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Or sour mash, the brown beverage that could be — just could be — making a comeback among young and millennial-age sippers?

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Like any respectable Sinatra aficionado, I’ve imbibed my share of Tennessee’s trademark sour mash whiskey.

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One Eight Distilling, for instance, sells an Untitled Whiskey No. 3, a Tennessee sour mash aged in the same barrel used for Vigilante's roasted Sumatra beans.

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So we call it bourbon, rye, sour mash and Carolina white.”

From

sour gum sour-milk cheese

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