How do you keep food cold?

To keep food cold, you can:

1. Refrigerate: Store perishable foods in the refrigerator at a temperature of 40°F (4°C) or below.

2. Freeze: Freeze foods that you won't be eating within a few days. Foods can be safely stored in the freezer for several months or even years.

3. Use an ice pack: Place an ice pack in your cooler or lunch bag to help keep food cold.

4. Insulate your cooler: Line your cooler with a layer of insulation, such as bubble wrap or newspaper, to help keep the cold air inside.

5. Keep your cooler closed: Open your cooler only when necessary to avoid letting the cold air escape.

6. Pre-chill your food: Before you pack your food in your cooler, pre-chill it in the refrigerator. This will help it stay colder longer.

7. Avoid packing warm foods: Avoid packing warm foods in your cooler, as they will raise the temperature inside the cooler and cause other foods to spoil more quickly.

8. Freeze drinks: Freeze drinks in advance to help keep your cooler cold.

9. Use dry ice: Dry ice can be used to keep food cold for longer periods of time than ice. However, dry ice is dangerous and should only be used with caution.