LESSON 3 · Kitchen Chemistry
Fermentation in Modern Life
Fermentation is not just history — it is cutting-edge science and daily necessity:
- Biofuel production uses yeast to ferment corn or sugarcane into ethanol fuel.
- Pharmaceutical companies use engineered bacteria to ferment insulin and other drugs.
- Gut health depends on fermented foods feeding your microbiome with beneficial bacteria.
- Flavor development in cheese, soy sauce, miso, and fish sauce all require months of controlled fermentation.
- Industrial biotechnology ferments microbes to produce everything from vitamins to biodegradable plastics.