SNHD Two-Stage Cooling 1 — Questions and Answers
Question 1: What is the first stage of the two-stage cooling process for Time/Temperature Control for Safety (TCS) foods?
- Cool food from 135°F to 70°F within 4 hours.
- Cool food from 135°F to 70°F within 2 hours. (Correct answer)
- Cool food from 165°F to 70°F within 2 hours.
- Cool food from 135°F to 41°F within 2 hours.
Correct answer: Cool food from 135°F to 70°F within 2 hours.
The first stage requires rapid cooling through the most dangerous part of the temperature danger zone. Food must be cooled from 135°F (57°C) to 70°F (21°C) within 2 hours.
Question 2: What is the maximum total time allowed for the entire two-stage cooling process?
- 2 hours
- 4 hours
- 6 hours (Correct answer)
- 8 hours
Correct answer: 6 hours
The total cooling time from 135°F (57°C) to 41°F (5°C) must not exceed 6 hours. This is composed of the first 2-hour stage and the second 4-hour stage.
Question 3: During the second stage of the cooling process, food must be cooled from 70°F down to what temperature?
- 50°F or lower
- 45°F or lower
- 41°F or lower (Correct answer)
- 32°F or lower
Correct answer: 41°F or lower
The second stage involves cooling the food from 70°F (21°C) down to 41°F (5°C) or lower to ensure it is safe for cold storage.
Question 4: What is the maximum time allowed for the second stage of the two-stage cooling process?
- 2 hours
- 4 hours (Correct answer)
- 6 hours
- It depends on the food type.
Correct answer: 4 hours
After cooling food to 70°F within the first 2 hours, you have an additional 4 hours to cool it down to 41°F or lower, for a total of 6 hours.
Question 5: If you cool a large pot of chili from 135°F to 70°F in 1 hour, how much time do you have left to cool it to 41°F?
- 4 hours
- 5 hours (Correct answer)
- 3 hours
- 6 hours
Correct answer: 5 hours
The total cooling time must be 6 hours or less. If the first stage (135°F to 70°F) is completed in 1 hour (instead of the maximum 2), the remaining time for the second stage (70°F to 41°F) is 5 hours.
Question 6: Which of the following is an approved method for cooling food rapidly?
- Placing a large, hot pot directly into a walk-in cooler.
- Leaving the food on the counter to cool at room temperature.
- Using an ice-water bath and stirring the food. (Correct answer)
- Covering the food tightly with plastic wrap before it has cooled.
Correct answer: Using an ice-water bath and stirring the food.
Methods like ice-water baths, ice paddles, and dividing food into smaller, shallow containers are effective for rapid cooling. Placing a large, hot pot in a cooler can raise the ambient temperature, endangering other foods.
Question 7: What must be done if a TCS food has not been cooled to 70°F within 2 hours?
- Place it in the freezer immediately.
- Reheat the food to 165°F for 15 seconds and start the cooling process again. (Correct answer)
- Continue cooling, but make sure it reaches 41°F within the next 4 hours.
- Discard the food immediately.
Correct answer: Reheat the food to 165°F for 15 seconds and start the cooling process again.
If the first stage of cooling is not met, the food has been in the temperature danger zone for too long. It must be reheated to 165°F for 15 seconds to kill any bacteria that may have grown, and then the cooling process must be restarted.
SNHD Two-Stage Cooling 1
What is the first stage of the two-stage cooling process for Time/Temperature Control for Safety (TCS) foods?