Why is there rust on my bottle?Updated a month ago

Small spots of rust can occasionally appear on any metallic surface that is exposed to moisture, oxygen, or contact with other metals. While this can be surprising, please rest assured that these spots are completely harmless and can be removed easily by following the steps below.

1. Wipe the Affected Area

Use a soft paper or cotton cloth to gently polish the surface where rust appears.
Avoid using steel wool or abrasive tools, as these may scratch the metal.

2. Prepare a Citric Acid Solution

For best results, mix a 5% citric acid solution with warm water (around 40°C).
If you don’t have citric acid available, lemon juice or vinegar are great alternatives.

3. Fill and Soak

Pour the solution into the bottle, screw the cap on tightly, and let it soak for 30 minutes.

4. Agitate and Inspect

Gently swirl the bottle to help the solution reach all surfaces.
If any rust remains, use a soft cloth to loosen and remove the residual spots.

5. Rinse Thoroughly

Empty the solution and rinse the bottle three times with clean, fresh water to remove any remaining acidity.

6. Dry Completely

Allow the bottle to air dry fully before using it again.
For best long-term care, ensure your bottle dries completely between uses to prevent new rust spots from forming.

Once cleaned, your bottle should look as good as new.