flat sour

noun

fermentation occurring in canned foods after sealing.
canned food so fermented.

Origin of flat sour

First recorded in 1925–30

Words nearby flat sour

flat race, flat racing, flat screen, flat sennit, flat silver, flat sour, flat spin, flat spot, flat tax, flat tire, flat top

Example sentences from the Web for flat sour

  • Flat-sour often causes annoyance to beginners in canning some vegetables, such as corn, peas, beans and asparagus.

    Every Step in Canning |Grace Viall Gray

  • However, the taste and odor are so disagreeable you will have no desire to eat "flat-sour" canned goods.

    Every Step in Canning |Grace Viall Gray

  • This "flat-sour" is not harmful and must not be confused with "botulinus," which is harmful.

    Every Step in Canning |Grace Viall Gray