Your reusable water bottle might seem squeaky clean, but it could be a breeding ground for bacteria.
Experts recommend washing your water bottle every day. Yes, even if you only filled it with water. Why? Because the dark, moist interior is the perfect environment for germs to thrive, especially when combined with backwash from sweating during workouts.
In a 2022 study, researchers found that some water bottles harbored more bacteria than a toilet seat. Gross? Absolutely. But avoidable? Definitely.
How to Clean It the Right Way:
- Daily rinse: Use warm, soapy water and a bottle brush to scrub the inside, lid, and straw (if it has one). Rinse thoroughly and let it air dry with the cap off.
- Weekly deep clean: Soak your bottle in a mix of one part white vinegar to five parts water for 10 minutes. Or, run dishwasher-safe bottles through a hot cycle.
- Mold patrol: Check around the lid, rubber gaskets, and straws—these areas are particularly prone to mold growth. If you spot black or pink residue, it’s time for a deeper clean or replacement.
What Happens If You Don’t Clean It?
Neglecting regular cleaning can lead to bacterial buildup, including E. coli, staph, and mold. This can cause a range of issues, from bad breath to digestive problems and even full-blown infections, particularly in children or those with weakened immune systems.
The bottom line? Your water bottle keeps you healthy—but only if it’s clean. So, make it part of your nightly routine. A quick scrub could save you from a stomachache… or worse.
