There’s a part of your refrigerator that almost nobody cleans. The condenser coils — usually tucked along the back or underneath the fridge — are what release heat as the appliance keeps everything cold. When they get caked in dust, pet hair, and lint (and they will), the fridge has to work way harder to do its job.
How much harder? The U.S. Department of Energy says dirty coils can increase the energy cost of running a refrigerator by as much as 35%. That’s real money draining out every single month — for dust. The fridge also wears out faster because it’s running longer and hotter than it was designed to.
The American Cleaning Institute found that 1 in 3 Americans aren’t familiar with basic appliance upkeep like this. So you’re definitely not alone in not knowing — but now you do.
Cleaning the coils takes about five minutes. If your fridge doesn’t have a water or ice line running to the back, you can pull it slightly away from the wall to access rear-mounted coils. Otherwise, pop off the bottom front grill panel and you’ll find them underneath. A vacuum with a brush attachment works great. No special tools, no calling anyone, no watching a tutorial for 20 minutes. Just vacuum off the buildup and you’re done. Aim to do it twice a year — once a year if you’re in a lower-dust environment.