#Microbiotiful - A toothbrush

Toothbrushes carry many of the bacteria we have in our mouth—plus a few surprises. See what grew on our contact plate!

Microbiotiful #7 - A toothbrush
Experiment N. 07

A toothbrush

Your toothbrush may look clean but it is probably a breeding ground for bacteria. It can take more than an hour to dry, twice a day, giving microorganisms ample opportunity to multiply. In addition to the microorganisms that populate our mouth, unsavory fecal bacteria are often detected on toothbrushes, particularly when there is a toilet or sink nearby. So it’s advisable to rinse your toothbrush well, then remove as much water as possible, leave it to dry, and replace it every 3 months or so.

microbes observed