To safely cool TCS foods from 135°F to 41°F or below, which cooling plan is recommended?

• A. Cool from 135°F to 41°F within 2 hours
• B. Cool from 135°F to 70°F within 2 hours, then from 70°F to 41°F within the next 4 hours
• C. Cool from 135°F to 90°F in 3 hours, then to 41°F in 2 more hours
• D. Cool from 135°F to 70°F within 4 hours, then 70°F to 41°F within 2 hours

Answer: (B)

Cooling TCS foods safely relies on a two-stage cooling approach. You must get from 135°F down to 70°F within 2 hours, then continue cooling from 70°F to 41°F or lower within the next 4 hours. This keeps the total cooling time at 6 hours and limits the time the food spends in the danger zone where bacteria grow rapidly.

The plan that matches this exactly is to cool from 135°F to 70°F within 2 hours, then from 70°F to 41°F within the next 4 hours. This aligns with the standard cooling rule and minimizes microbial growth risk.

Plans that try to reach 41°F in 2 hours skip the required intermediate step to 70°F and don’t meet the 2-hour initial cooling guideline. A plan that targets 90°F in 3 hours doesn’t reach the mandated 70°F within the 2-hour window, leaving the food in a higher, riskier temperature for too long. A plan that takes 4 hours to reach 70°F is too slow for the first stage, missing the essential 2-hour limit to drop to 70°F.