Yes, bottled water is generally safe to drink when it comes from a regulated source and is stored properly.
For the full breakdown, see our best Drinking Bottled Water guide.
In the U.S., the FDA regulates bottled water as a food product, which means strict rules cover everything from source protection to testing. Here’s what the regulations actually cover and what you need to watch.
How The FDA Keeps Bottled Water Safe
The FDA treats bottled water as a packaged food, not as a utility service. That distinction matters because it sets the safety bar. Producers must process, bottle, hold, and transport water under sanitary conditions while protecting the source from bacteria, chemicals, and other contaminants. The rules also require quality-control processes plus sampling and testing of both the source water and the finished product.
These standards are laid out in specific regulations: 21 CFR Part 129 covers processing and bottling, while 21 CFR Part 165.110 defines what qualifies as bottled water. The FDA has the authority to take enforcement action if a product contains contaminants above these limits, and in such cases, the water is considered adulterated.
Bottled Water vs. Tap Water: Which Is Safer?
Neither is inherently safer when both meet their standards. The FDA bases its bottled-water rules on the same safe drinking-water regulations the EPA applies to public tap water. So the quality baseline is essentially the same, just enforced by different agencies.
The difference is oversight. The EPA regulates public drinking water systems, but it does not regulate the manufacture or distribution of bottled water. That job falls to the FDA because bottled water is classified as a food. So your tap water gets checked by one federal agency, and your bottled water gets checked by another, but both are held to comparable safety levels.
Storage Mistakes That Can Make Bottled Water Unsafe
The CDC’s guidance focuses on how you store the water more than the water itself.
If you do reuse a container, the CDC recommends washing it with soap and water, sanitizing it with unscented bleach containing 5%–9% sodium hypochlorite, waiting at least 30 seconds, then air-drying or rinsing with safe water before filling.
References & Sources
- FDA. “Bottled Water Everywhere: Keeping it Safe.” Explains FDA regulations, E. coli rules, and safe handling guidance.
- FDA. “FDA Regulates the Safety of Bottled Water Beverages.” Details 21 CFR oversight and quality standards.
- CDC. “About Bottled Water Safety.” Provides storage and container sanitization recommendations.