Is it safe to make yogurt in a plastic Instant Pot insert?
Based on 1 peer-reviewed studykitchen
Verdict: Avoid
No. Fermenting yogurt in plastic at 40°C+ for hours is a clear migration pathway.
What's actually in it
Making yogurt involves heating milk to 80°C, then holding at 40°C for 8+ hours. Extended warm contact with plastic inserts releases more plasticizers and microparticles than most cooking.
What the research says
A 2025 study found fatty foods in plastic were top sources of dietary phthalates. Yogurt is fatty.
Make yogurt in a stainless steel Instant Pot insert, glass jars in a water bath, or a dedicated glass yogurt maker.
The research at a glance
| Study | Journal | Year |
|---|---|---|
| Plastic additives in the diet. | J Hazard Mater | 2025 |
What to use instead
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