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CR Laundry Expert Reveals How He Keeps Our Washing Machines Clean

Our washers are so clean that we couldn’t test washing machine cleaners in them. Rich Handel shares easy-to-follow tips that can mostly be done at home.

Hand wiping down inside rim of a washing machine with a pink microfiber cloth
Washing machines are designed to clean laundry, but keeping them clean can be difficult.
Photo: Getty Images

When we set out to test washing machine cleaners, we came across what you might call a good problem to have: the washing machines in our laundry lab were so clean they hardly appeared to have been used at all. 

More on Making Laundry Day Easier

Considering we’ve used them to wash hundreds of loads while testing laundry detergents, it was a shock to see these appliances so clean. My own washing machine at home has washed significantly fewer loads and doesn’t look nearly as good as the ones in our lab. There’s a slimy film and mildew growth on the seal, and the dispenser has detergent buildup. Every time I stand too close to my open front-loader, there’s also a gross, wet towel smell that never really goes away. When I tried a few store-bought washer cleaners, I got rid of the odor, but the slimy, gunk remained.

Our laundry expert, Rich Handel, shared how his team keeps our washing machines so clean, and I was pleasantly surprised to learn that I could use some of his tips at home. 

I’m about to have the cleanest washer in Queens.

The 4 Ways CR Maintains the Cleanliness of Our Washers

Handel says that the cleanliness of our laundry lab washing machines is a byproduct of our testing procedures. “We measure out the amount of detergent we use and don’t overdo it,” he says. Rich went on to say, “Overdoing the detergent has a few side effects. In some cases, the machine is unable to rinse out the excess detergent. The residual detergent ends up on your clothes and in your machine.”

Consumer Reports Senior Test Project Leader, Richard Handel

The residual detergent lands on gaskets, inner drums, and internal channels. That residue attracts lint and dirt, which then become a great medium for mold and mildew to grow.

Rich Handel

Next, if you’ve read any laundry advice from Rich, this next sentence will come as no surprise to you. We do not use any fabric softeners in our washing machines, because over time it can leave a layer of residue inside the washer, among other reasons 

The next thing we do to keep our washing machines clean is rinse the drums out using a hose in between each test run. This helps remove any detergent residue that may remain at the end of a wash cycle.

After all the test loads have been washed for the day, we leave the door and detergent tray open until they are dry. A dark, humid space is a breeding ground for mold and mildew. Keeping the door open prevents moisture from getting trapped inside.

What You Can Do at Home to Keep Your Washer Odor- and Residue-Free

To recap, here are the practical things you can do to keep your home washer in the best condition.

  • Measure your laundry detergent, and don’t overdo it. Our experts recommend about 1 ½ ounces for a normal load—about a shot glass worth of detergent.
  • Skip the fabric softener. Instead, consider a dryer ball in your dryer, which leaves no residue behind and can help fluff up clothing and speed up dry cycles.
  • Wipe down and dry the door, around the gasket, in the gasket, and the detergent tray with a microfiber towel after the last load of the day. Handel says he does this at home, and his 4-year-old machine looks like new.
  • Lastly, if no small children and pets have access to your laundry room, keep the door and detergent tray open until they are completely dry. Leaving the washer door open could pose a safety hazard.

Jodhaira Rodriguez

Jodhaira Rodriguez is a senior multimedia content creator at Consumer Reports. Before joining CR, she tested and wrote about cleaning and organizing products and major appliances like washing machines and dishwashers at Good Housekeeping. In her free time, you’ll find her reading, listening to true crime podcasts, or working on her latest hobby of the month.