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How Dirty is your Kitchen Sponge?

  • 2 min read

Quick - what is the dirtiest thing in your house?

We can bet that the humble kitchen sponge is not even in the top 10 of the things that spring to mind. Your kitchen is up there with the dirtiest areas in the house. And if bacteria glowed, it would look like a UV party - guess the only kind there will be in 2020. The washing up sponge would shine the brightest.

Your Kitchen Sponge is Full of Bacteria

The kitchen sponge is the working horse for cleaning up the culinary mess, spills and other dirt from around your kitchen. As a result, the most recent German study concluded that they are estimated to contain 46 billion bacteria per square centimetre, spanning 362 different species. The sheer amount had even surprised the researchers involved. That is half of what you come in contact with when kissing another person. Yikes.

But don’t proclaim the sponge as your enemy just yet. It might get dirty, but most of the bacteria pose no harm to humans. Another myth to bust is that boiling and microwaving the sponge is an acceptable way to sanitise them. Latest research found that there's no difference between sponges that are sanitised vs. those that aren't. Bacteria can multiply faster than 20 minutes!

The best way to ensure safety is to simply replace your sponges regularly. A good indication of bad bacteria is a foul smell, so you know when it's time for a new one.

But that's not a fool-proof solution either. Not all sponges are created equal. The most common ones found at the supermarkets are made from nasty plastic and what happens when you frequently dispose them of? They don't get recycled and pollute our oceans for centuries. Imagine poor Nemo floating around with your year's worth of dirty kitchen sponges. In the end, it goes full circle so the microplastics end up in your food and water.

No reason to fret. We have a solution. Opt for the earth and Nemo-friendly biodegradable options below. Bonus: they all come in plastic-free packaging. 

Here are some of our favourites: 

Ecovibe Biodegradable Kitchen Scourer

plastic free kitchen sponge


Tabitha Eve reusable sponge


plastic free washing up sponge

 Words by Sofya Zakharova

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