Fermenting is the process of something (usually food) becoming sour or fermented. This is usually caused by bacteria, and it can take a while for the food to ferment.

  • The cheese was going to ferment if it wasn't refrigerated.

  • The bread was going to ferment if it wasn't stored in a moist environment.

Definition of fermenting


a process in which an agent causes an organic substance to break down into simpler substances; especially, the anaerobic breakdown of sugar into alcohol


ferment, fermentation, zymolysis, zymosis

Nearby Words

fermenting Pronunciation in a video (2)

Example Sentences for fermenting

  • 1

    They differ in the yeast and the fermentation temperature.

  • 2

    The yeast will ferment the sugars in the juice into alcohol.

  • 3

    Yeast is a microorganism that promotes the fermentation of the beer.

  • 4

    The long fermentation also allows the yeast to multiply.

  • 5

    In addition to fermenting the beer, yeast influences the character and flavour.

  • 6

    Unlike humans, yeast and bacteria do not ferment glucose to lactate.

  • 7

    Lactic acid fermentation is the simplest type of fermentation.

  • 8

    It is a byproduct of the fermentation of grain.

  • 9

    This leads to the process of fermentation.

  • 10

    In the colon they are fermented by anaerobic bacteria.