The Dirty 9: What Are the Germiest Places In Your Home?

The Dirty 9: What Are the Germiest Places In Your Home?


Some microbes are beneficial, but not when they put you and your loved ones at risk for viruses and diseases. Your home, with all of its nooks and crannies, is a breeding ground for mold, staph germs, yeast and coliform bacteria. Some places in your home are germier than others, so cleaning takes a little more effort in those areas. Dr. Gerba, a microbiologist at the University of Arizona who is better known as “Dr. Germ”, consulted a study by a National Sanitation Foundation (NSF), a public health and safety organization. With their help, they discovered the 9 germiest places in your home – and how to clean and disinfect them.


“Number one is the household sponge – almost all have E. coli growing in them, said Dr. Gerba. “That sponge stays wet and moist with plenty of food for bacteria to eat.” In the NSF study, 86% of sponges had mold and yeast, 77% contained coliform bacteria and 18% were filled with staph bacteria.

Kitchen Sink

The sink contains more microbes than the bathroom. 45% of all sinks contain coliform bacteria and 27% contain mold.

Toothbrush Holder

No, the toilet is not the worst place in your bathroom – the worst goes to the toothbrush holder. In face, the toilet seat might be the least full of microbes in the bathroom. 64% of toothbrush holders contain mold and yeast and 27% contain coliform bacteria and 14% contain staph.

Pet Bowl and Pet Toys

Many of your pet’s favorite objects are also bastions of microbes. In fact, 45% of bowls contain mold and yeast and 18% contain coliform bacteria. Among pet toys, 55% contain yeast and mold and 23% contain staph bacteria.

Coffee Reservoir

That coffee maker could be giving you more than just a jolt of caffeine. The coffee reservoir is not only damp, but also dark, making it an ideal place for microbes to thrive. Half of reservoirs contain yeast and mold and 9% contain coliform bacteria.

Bathroom Faucet Handles

Unless you have a touchless faucet in your bathroom, faucet handles are some of the worst places in your home. 27% of faucet handles contain staph and 9% contain coliform bacteria.


If the kitchen is the home’s hub, the countertop is the kitchen’s hub. Packages and bags of groceries (which were previously on the floor in your car) are placed on it, in addition to handbags and backpacks. And yet, this is also where you prepare food – some of it raw. 32% of countertops contain coliform bacteria and 18% contain mold.

Stove Knobs

How often do you clean your stove knobs? Probably not often enough! 27% of knobs contain mold and yeast, while 14% contain coliform bacteria.

Additional Hotspots for Microbes:

  • Cutting Board
  • Refrigerator Door
  • Toilet Handle
  • Bathroom Door Know
  • Bathroom Light Switch
  • Cellphone
  • Keyboard
  • Remote Control
  • Hand Towels

Cleaning and sanitizing frequently is important, but do you have the perfect complement to traditional cleaning and disinfecting regimens? MicroShield 360 antimicrobial coating system is EPA registered and FDA approved for direct food contact surfaces. The multi-step system is electrostatically applied to over 1,500 surface types to help protect you and your family from bacteria, virus, foul odors and mold growth! The coating is colorless, odorless, non-leaching and lasts up to a year with a single application.

Contact MicroShield 360 today to learn more about Residential Services.

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