How to Properly Clean a Reusable Water Bottle

Rinse the bottle with hot water right after use to remove residue and odors before they set in.

A brush with long bristles reaches the bottom and corners of narrow-necked bottles far more effectively than a sponge.

If the bottle is dishwasher safe, the top rack gives it a thorough clean; just remove any components that aren't dishwasher safe first.

Warm, soapy water and a bottle brush work well for bottles that aren't dishwasher safe, making sure to reach every corner.

Shake a mix of baking soda and warm water inside the bottle, or try a 1:1 vinegar-and-water solution, to help remove stubborn odors and stains before rinsing thoroughly.

Fresh lemon juice and water left to sit for a few hours can help lift odors and stains before a thorough rinse.

Fill the bottle with water and a pinch of salt, freeze overnight, then rinse in the morning; the ice helps dislodge residue while the salt acts as a mild abrasive.

Clean or replace any removable seals or O-rings regularly to prevent mold and bacteria from building up.

Let the bottle and its parts air dry fully, using a drying rack or propping it upside down, to prevent mold growth.

Bleach and other abrasive cleaners can damage a bottle or leave behind a residue that isn't safe to drink from.

Check periodically for wear, damage, or mold, and address any issues as soon as they show up.

Letting liquid sit for extended periods, especially somewhere hot and humid, encourages mold and bacteria growth, so it's best to empty and rinse a bottle soon after each use.