Make sure your refrigerator and freezer are at their optimal temperature It’s tempting to turn your fridge and freezer down until they breathe icy clouds of air every time you open the door, but the likelihood is that your appliances are actually too cold—which is a giant energy suck. According to the FDA, your fridge should be 40 degrees Fahrenheit or colder (but not too cold or you’ll damage delicate produce), and your freezer should be at 0 degrees Fahrenheit. If your refrigerator or freezer doesn’t have an actual thermometer inside, there are plenty of inexpensive models you can purchase and stick to the inside wall.
