At what temperature does microorganism growth begin to significantly slow down?

• A. 0 °C
• B. 10 °C
• C. 15 °C
• D. 20 °C

Answer: (B)

Microorganism growth begins to significantly slow down around 10 °C. At this temperature, many bacteria and other microbes enter a state of reduced metabolic activity, which hinders their reproduction and overall growth. This is particularly important in food preservation and safety, as keeping food at or below this temperature can help inhibit the growth of pathogens and spoilage organisms.

Understanding the temperature ranges for microbial activity is essential for managing food storage, refrigeration practices, and ensuring compliance with health regulations. Lowering temperatures below the optimal growth conditions for many microorganisms is a commonly used strategy to extend the shelf life of perishable goods and minimize foodborne illnesses.