Well, for one, there's probably a lot of it.

By Mirel Ketchiff
January 14, 2017

Without even standing up, I can spot seven water bottles on my desk right now. Maybe I'm extreme, but I think it's fair to say that water bottles are the type of gear that seems to multiply. You get one free for signing up at a gym, you buy a fancy BPA-free one, you buy a replacement one when you realize you forgot to bring either on your vacation. Then, all of a sudden, you have seven water bottles just sitting there festering on your desk. (Related: The Best Water Bottle for Every Workout)

Unfortunately, that adds up to a shocking amount of bacteria. The average athlete's water bottle contains 313,499 CFU (colony-forming units) of bacteria per square centimeter, according to a recent study conducted on behalf of Treadmill Reviews. For scale, the average pet toy has just 2,937 CFU. The average household toilet seat has 27 CFU. Barf.

The study found that slide top, squeeze top, and screw top bottles had much more bacteria than straw top bottles, which had just 25 CFU per square centimeter. That may be because you don't need to use your hands to use straw top bottles. "Your hands may pick up viruses from touching various surfaces, which then get transferred to the bottle and eventually to your mouth," says Charles P. Gerba, Ph.D., a professor of microbiology and environmental sciences at the University of Arizona. What's more, while the germs that come from your own mouth aren't likely to make you sick, the ones that are transferred to bottles from your hands are.

Sure, you could switch to one-use bottles only, but that's not the most environmentally friendly option. Instead, try to wash your water bottles after every use. If you can't stick it in the dishwasher, wash it by hand with warm, soapy water and, for narrow necked bottles, a scrub brush. Leave it open and let it dry completely so mold doesn't grow-a whole 'nother problem you don't want to worry about.

Comments (3)

January 13, 2019
Omnis dicta perferendis. 💖 Ever heard of the Keto diet? I started using the advice at WWW.KETOCOOKBOOK.ORG and lost 25 pounds of fat in a month! I’ve never lost weight so fast!! The Keto Diet really is amazing because it forces the body to always burn fat for energy — so you lose the fat and keep it off. If you want to lose some weight, I highly recommend using that website :) Check it out! Best of luck to you! 💖
November 3, 2018
hey i found a rapid weight loss program that can help you lose up to 23 pounds of pure body fat in just 3 weeks!!! watch this video here -> 3weeksdiets.net
October 27, 2018
Did you know there’s a “deep detox” you can do first thing in the morning to burn more fat? you can burn 1.2lbs daily and It only takes 13-seconds! watch this video : flatbelydetox.net