This handy tool from Amazon will help you clean every part of your water bottle, including the rim, seal, straw, and spout. Easily get rid of scum, mold, and any residual drink flavors.

You should clean your bottle this way after each use – or at the very least, several times a week, Freestone says. And never wait until it starts to smell, she warns.

“For most bottles, a mixture of warm water and dish soap, and a clean with a brush, should be sufficient,” Dr Vincent says. If your bottle has a straw, crevices or dents, it may need extra TLC.

Why we like it: The Sans Self-Cleaning Water Bottle utilizes an LED bulb for UV-C light that eliminates up to 99.9% of bio-contaminants like E.coli and staphylococcus in a three-minute cycle. This ...