A reusable water bottle needs care suited to its material, lid, seals and other parts. Start with the bottle manufacturer’s instructions rather than a homemade chemical recipe.
Check the Bottle’s Care Instructions
Follow the manufacturer’s directions for cleaning and drying the bottle and its removable parts. Check those instructions before using a dishwasher, heat or a chemical cleaner. A method intended for one bottle may not suit another.
Do Not Mix Cleaning Products
Do not mix bleach with hydrogen peroxide or other cleaning products. Do not improvise a mixture to remove stains or make a cloudy bottle clear again. If the bottle stays cloudy or appears damaged, ask its manufacturer whether it should be replaced.
Cleaning Is Not the Same as Disinfection
Removing visible residue does not establish that a bottle has been sanitized or disinfected. If a sanitizing or disinfecting product is needed, check that its actual label covers the intended use and surface, and follow all directions and precautions. Follow any required rinsing instructions before using the bottle for drinking.
What About Hydrogen Peroxide?
The ingredient name alone does not tell you whether a product is suitable for the inside of your drinking bottle. This guide does not recommend a peroxide concentration or a homemade treatment. Check the bottle manufacturer’s instructions and the specific product label rather than assuming that a product described as food-grade is suitable.
The Takeaway
Use the bottle’s care instructions and the chosen product’s directions together. If they do not establish that the method is suitable, contact the manufacturer before proceeding. Avoid improvised mixtures and do not assume that an apparently clean bottle is sterile.
