Microbes produce waste that can make their environment too acidic for their own survival.
The stars of the show are the microbes. Different "employees" yield different results: Basic of Fermentation Technology
In your kitchen, fermentation happens in a jar. In technology, it happens in a (or fermenter). These are sophisticated stainless-steel vats designed to keep microbes perfectly happy. To get the best yield, engineers must control: Temperature: Even a few degrees off can kill the culture. Microbes produce waste that can make their environment