The whole town was in a ferment.

In about ten days the first fermentation will definitely be finished.

As the food particles ferment, they produce methane.

What's the difference between fermentation and putrefaction?

The fruit began to ferment.

What's the difference between fermentation and decay?

Beer. Basically fermented grass for earthlings.

Kvass is a fermented beverage made from rye bread that's popular in most Slavic countries.

Anaerobic respiration is distinct from fermentation.

Tom is a bipedal great ape and he enjoys drinking various concoctions of fermented grains after his daily time-based enslavement.