An expert breaks down the truth about bacterial buildup—and how to banish that slimy film for good. Reusable water bottles, especially plastic bottles or those with small parts, can breed bacteria.

Even with narrow hands, you can’t reach every part of the bottle’s interior through the narrow neck. If the water bottle isn’t thoroughly cleaned, you might ingest harmful germs through the liquid ...

As I published this article, I have my teenage son‘s hydro flask, my tea kettle, my Nespresso water container, and the aluminum water bottle I bought at my local whole-food store that I’ve been ...

Hydrating throughout the day is essential for your overall health, and it’s better for the environment if you skip single-use plastic water bottles. However, reusable water bottles can get filthy in a ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. They started out as a great alternative to reduce plastic waste, and ...

You keep your trusty reusable bottle filled with only clear, delicious water. Do you still need to wash it?Experts say reusable bottles get grubby no matter what liquid they're filled with, and it's ...

Experts say reusable bottles get grubby no matter what liquid they're filled with, and it's ­important to clean them regularly.