What is the standard Temperature Danger Zone (TDZ) for bacteria in Fahrenheit?

What is the standard Temperature Danger Zone (TDZ) for bacteria in Fahrenheit?

• A. 32-140°F
• B. 41-135°F
• C. 50-140°F
• D. 60-120°F

Answer: (B)

Bacteria multiply most quickly within a specific temperature band called the Temperature Danger Zone. In Fahrenheit, that zone is 41°F through 135°F. Keeping foods out of this range slows or stops growth, which is why refrigeration (at or below 41°F) and hot holding (at or above 135°F) are key food-safety practices. The other ranges don’t match this standard: they either start too low or end too high, or miss parts of the zone where growth occurs, so they don’t accurately represent where bacteria can rapidly multiply.

Bacteria multiply most quickly within a specific temperature band called the Temperature Danger Zone. In Fahrenheit, that zone is 41°F through 135°F. Keeping foods out of this range slows or stops growth, which is why refrigeration (at or below 41°F) and hot holding (at or above 135°F) are key food-safety practices. The other ranges don’t match this standard: they either start too low or end too high, or miss parts of the zone where growth occurs, so they don’t accurately represent where bacteria can rapidly multiply.