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The 5 Biggest Bacteria Breeding Grounds in Kitchens

Kitchens are hotbeds of bacteria – often in the most unsuspecting places. Here are 5 things you probably need to pay more attention to:


Sponges contain more than 10,000 bacteria per square inch! Wash or replace your sponges regularly. You can also disinfect them by wetting them and zapping them in the microwave every day, which will eliminate 99% of germs.


Kitchen sinks are 100,000 times more contaminated than bathroom sinks (and even more contaminated than toilets and trash cans!) Because they are often wet and contain food particles, kitchen sinks tend to be crawling with germs. Always clean sinks with hot soapy water after washing dishes and never leave food scraps at the bottom. You can also regularly disinfect sinks with diluted bleach.


Never allow pets on countertops and disinfect kitchen work surfaces before and after using them. A solution of 2 ml of bleach in 500 ml of water will do the trick.

Cutting boards

Cutting boards can have 200 times more fecal bacteria than toilet seats. That’s because they are often rinsed rather than washed. Always wash cutting boards thoroughly after using them to cut raw meat (especially chicken) or fish. For raw food, it’s best to use plastic cutting boards that can go in the dishwasher.

Water reservoirs in coffee makers

It may seem strange to see coffee makers in this top-5 list, but keep in mind that water often sits stagnant in the reservoir of coffee makers. Clean the reservoir with white vinegar once a month to prevent bacteria from growing. 

And remember: Always wash your hands thoroughly with soap and water before and after preparing food.

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