What is the safe refrigerator temperature in Celsius?

• A. 0°C
• B. 5°C
• C. 10°C
• D. -5°C

Answer: (B)

Maintaining a refrigerator temperature cold enough to slow bacterial growth is the key idea. Refrigeration around 4°C or below helps keep foods safe by slowing the microbes that cause spoilage and illness. Among the options, 5°C is the closest to that safe range and stays cold enough to slow growth without freezing most items. A temperature of 10°C is too warm and allows bacteria to multiply more quickly. A temperature of 0°C would start freezing many foods, which can ruin texture and quality, and -5°C would freeze items, which isn’t the intended use of standard refrigeration.