Do espresso machines with plastic parts leach chemicals into coffee?
Worth avoiding. BPA leaches from plastic, especially when heated. Use glass or stainless steel.
What's actually in it
BPA (bisphenol A) is used to harden polycarbonate plastics and line metal cans. It leaches into food and drinks, especially when heated or scratched. BPA acts like estrogen in the body at low concentrations.
Many "BPA-free" products use BPS or BPF instead. Early research suggests these alternatives may behave similarly to BPA.
What the research says
A 2026 study in fertil steril looked at chemical exposure from everyday products and found: Evidence that declining human fecundity contributes to the fertility crisis..
Lindahl-Jacobsen R(1), Beck AL(2), Priskorn L(2), Holmboe SA(2), Fischer MB(2), Andersson AM(2), Skakkebæk NE(3)..
The research at a glance
| Study | Journal | Year |
|---|---|---|
| Evidence that declining human fecundity contributes to the fertility crisis. | Fertil Steril | 2026 |
What to use instead
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