fermentation occurring in canned foods after sealing.
canned food so fermented.
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.
"flat sour" affects peas, beans, asparagus and corn more than other vegetables.
However, the taste and odor are so disagreeable you will have no desire to eat "flat-sour" canned goods.
Flat-sour often causes annoyance to beginners in canning some vegetables, such as corn, peas, beans and asparagus.
This "flat-sour" is not harmful and must not be confused with "botulinus," which is harmful.