Water bottles contain a lot of moisture and can turn incubators for bacteria and fungi. Reusable water bottles and travel mugs keep excess waste out of the landfills and save you money on disposable containers. But what happens when they get dirty? How do you clean them? Here I am with easy techniques to clean your water bottles:


Stainless steel water bottles are dishwasher safe.  Put the water bottle into the dishwasher for a full “hot” cycle.  The high temps and stronger dishwasher detergent may result in success.


Pour out any leftover liquid, add a few drops of dishwashing soap and some warm water, screw on the top, and shake for a minute or so. It’s smart to invest in a bottle brush like this so you can scrub deep inside your bottle, especially if it has a narrow mouth. Thoroughly clean the cap and straw as well and allow air-drying overnight.


This all-natural cleaner is great for killing certain germs and bacteria. After washing with soapy water, rinse well, and fill your bottle one fifth of the way with white vinegar. Fill the rest with water, let it stand overnight, and in the morning thoroughly rinse it out.


Another method that works really well is to add one or two heaping teaspoons of baking soda and warm water into the water bottle and let that soak for a few hours.   After the soak wash vigorously with soap and water and reassess.