You seem to be asking about safe cooling methods. Here are some examples of safe cooling methods:
1. **Refrigeration:** Keeping food in a refrigerator at temperatures below 40°F (4°C) to slow down bacterial growth and maintain food safety.
2. **Ice Baths:** Placing food containers in a larger container filled with ice and water to rapidly cool them down, especially for hot foods cooked in large batches.
3. **Dividing into Smaller Portions:** Dividing large batches of hot food into smaller portions and placing them in shallow containers to promote faster cooling.
4. **Blast Chillers:** Using commercial blast chillers or rapid cooling equipment to quickly bring down the temperature of hot foods to safe levels.
5. **Refrigerated Display Cases:** Displaying perishable food items in refrigerated display cases or salad bars to maintain safe temperatures during service.
As for methods that are not safe for cooling food:
- **Leaving Food at Room Temperature:** Allowing food to cool down to room temperature before refrigerating it can promote bacterial growth and increase the risk of foodborne illness.
It's crucial to follow proper food safety guidelines and use safe cooling methods to prevent foodborne illnesses and ensure the safety of perishable foods.
Hope this helps!