flat sour
noun
fermentation occurring in canned foods after sealing.
canned food so fermented.
Origin of flat sour
1First recorded in 1925–30
Words Nearby flat sour
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use flat sour in a sentence
"flat sour," perfectly harmless, appears often with inexperienced canners.
Every Step in Canning | Grace Viall Gray"flat sour" affects peas, beans, asparagus and corn more than other vegetables.
Every Step in Canning | Grace Viall GrayHowever, the taste and odor are so disagreeable you will have no desire to eat "flat-sour" canned goods.
Every Step in Canning | Grace Viall GrayFlat-sour often causes annoyance to beginners in canning some vegetables, such as corn, peas, beans and asparagus.
Every Step in Canning | Grace Viall GrayThis "flat-sour" is not harmful and must not be confused with "botulinus," which is harmful.
Every Step in Canning | Grace Viall Gray
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