Is it safe to drink coconut water from a carton?
Based on 1 peer-reviewed studykitchen
Verdict: Use Caution
Tetra-pak cartons are cleaner than plastic bottles. A thin plastic liner still adds some exposure.
What's actually in it
Tetra-pak cartons are paperboard, aluminum foil, and a thin polyethylene plastic liner. The liner touches the drink. For short shelf life and room-temp storage, leaching is small. For long shelf-stable cartons, more migrates over time.
What the research says
A 2025 study in J Hazard Mater mapped phthalate and plasticizer intake across packaging. Long-life cartons contributed measurably.
Buy coconut water in glass bottles when available, or buy fresh whole coconuts. Tetra-pak is a decent middle ground between glass and plastic.
The research at a glance
| Study | Journal | Year |
|---|---|---|
| Plastic additives in the diet. | J Hazard Mater | 2025 |
What to use instead
Browse our vetted, non-toxic alternatives. Every product is third-party certified.
Shop Non-Toxic Kitchen