Write the next sentence in the following story.

How to refrigerate foods safely
Avoid packing your refrigerator tightly.
Packing loosely allows the cold air to circulate.
Use an appliance thermometer to monitor the real temperature inside your refrigerator and your freezer.

Available options: *If your refrigerator is freezer-safe but you have a thermometer, it will give you a very accurate reading. Use a freezer folder to protect your food from dust, chemicals, and other debris.; *The refrigerator should be at 40 f (4 c) or below, but above 32 f (0 c). Your freezer should stay at 0 f (- 18 c).; *You can also use an ice cream scoop to decide on your fridge temp. If you want a thermometer that you can use while cooking, want to make sure that you only leave your refrigerator open for about 15-30 minutes.; *Boiling water can kill many chemicals that are stored in cold foods. If your refrigerator is currently cold, keep an electronic thermometer inside the refrigerator or freezer.;. The answer should be
The refrigerator should be at 40 f (4 c) or below, but above 32 f (0 c). Your freezer should stay at 0 f (- 18 c).