Is it safe to drink kombucha from a plastic bottle?
Based on 2 peer-reviewed studieskitchen
Verdict: Use Caution
Not ideal. Kombucha is acidic and sits in plastic for weeks of shelf storage.
What's actually in it
Kombucha is acidic (pH 2.5-3.5). Acidic drinks pull plasticizers and microplastics from PET bottles. Commercial kombucha often ships in PET.
What the research says
A 2025 trial showed acidic drinks in plastic raised urinary BPA. A 2025 study documented microplastics across plastic beverages.
Buy kombucha in glass bottles or brew at home in a glass jar.
The research at a glance
| Study | Journal | Year |
|---|---|---|
| Urinary bisphenol levels and blood pressure after soda consumption. | Sci Rep | 2025 |
| Microplastics in drinking water bottles and milk packaging. | Environ Monit Assess | 2025 |
What to use instead
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