Which statement correctly describes fermentation in food preservation?

• A. It uses bacteria to produce acids or alcohol that inhibit harmful microbes
• B. It uses heat to sterilize food
• C. It degrades nutrients for flavor
• D. It requires refrigeration to start

Answer: (C)

Fermentation preserves food by letting certain microbes metabolize sugars into acids or alcohol. Those byproducts lower the environment’s pH and create conditions that inhibit the growth of harmful microbes, helping the food last longer and often develop distinctive flavors. That’s why describing fermentation as using bacteria to produce acids or alcohol that inhibit harmful microbes is the accurate explanation. Heat sterilization refers to a different preservation method, fermentation isn’t primarily about degrading nutrients for flavor, and fermentation doesn’t require refrigeration to start.