The Types of Bacteria Lurking Inside
Not all bacteria are harmless. The study highlighted two types of concern:
Gram-negative rods: These can lead to infections such as pneumonia or bloodstream infections.
Bacillus: Often non-toxic, but can cause foodborne illnesses if ingested in large amounts.
These bacteria thrive in moist, enclosed spaces—which makes a reusable water bottle, especially one kept at room temperature and refilled throughout the day, an ideal environment for them.
How Often Should You Clean Your Bottle?
Experts recommend a daily cleaning routine:
Wash the bottle with hot, soapy water, making sure to scrub the lid, straw, and mouthpiece.
Sanitize weekly using white vinegar or a diluted bleach solution, particularly if your bottle is used for anything other than water.
For dishwasher-safe bottles, running them through the dishwasher can help eliminate bacterial buildup.
Tip: Plastic bottles can retain bacteria over time. For better hygiene, consider glass or stainless steel bottles, which are easier to clean and less likely to harbor microbes long-term.
