sour mash

noun

1. a mash with optimum acidity for yeast fermentation; a mixture of old and new mash; used in distilling some whiskeys

• Hypernyms: ↑mash

2. any whiskey distilled from sour mash

• Syn: ↑sour mash whiskey

• Hypernyms: ↑whiskey, ↑whisky

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noun

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

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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.

[1880-85, Amer.]

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sour mash noun (US)

1. New mash mixed with old to increase acidity and promote fermentation

2. Whiskey made in this way

• • •

Main Entry: ↑sour

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sour mash,

U.S.

1. a fermenting grain mash.

2. a whiskey made from this.

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n. a mash used in distilling certain malt whiskeys

■ whiskey distilled from this