sour mash


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 One of Crowe’s most notable accomplishments was introducing and refining the sour mash fermentation technique, a method now commonly used in bourbon production. al, "Lessons in bourbon from Woodford Reserve assistant master distiller Elizabeth McCall," 30 Dec. 2019 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

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'sour mash.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of sour mash

1877, in the meaning defined above

Keep scrolling for more

Learn More about sour mash

Time Traveler for sour mash

Time Traveler

The first known use of sour mash was in 1877

See more words from the same year

Statistics for sour mash

Cite this Entry

“Sour mash.” Dictionary, Merriam-Webster, Accessed 5 Dec. 2020.

Comments on sour mash

What made you want to look up sour mash? Please tell us where you read or heard it (including the quote, if possible).


Test Your Vocabulary

Musical Words Quiz

  • gramophone
  • Which word describes a musical performance marked by the absence of instrumental accompaniment?
Spell It

Can you spell these 10 commonly misspelled words?


Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!