64/100

Kitchen

Unlined Copper Cookware

Low burden — Unlined Copper Cookware is a relatively low-burden choice.

Bare copper pots in contact with acidic food.

The breakdown

Each driver rated 0 (none) to 10 (worst)

Chemical hazard
4
Everyday exposure
3
Persistence
3

Evidence strength: strong · Detox Score = 100 − hazard×4.6 − exposure×3.4 − persistence×2.6, clamped 1–100.

What this means for you

A Detox Score of 64 places unlined copper cookware in the Low band. None of the three drivers is severe, which keeps the burden manageable. Copper leaches readily into acidic foods, which is why food-safety codes restrict bare copper surfaces from contacting acidic ingredients. Lined copper keeps the heat-conduction benefit without the direct food contact.

Cleaner swap → Tin- or stainless-lined copper, or plain stainless steel.
See where your whole exposure load is highest — free Exposure Score →

Frequently asked questions

Is unlined copper cookware a toxic exposure?

Unlined Copper Cookware has a Detox Score of 64 out of 100 (Low burden), which means it is a relatively low-burden choice. Copper leaches readily into acidic foods, which is why food-safety codes restrict bare copper surfaces from contacting acidic ingredients. Lined copper keeps the heat-conduction benefit without the direct food contact.

What is a safer alternative to unlined copper cookware?

A lower-exposure swap for unlined copper cookware is: Tin- or stainless-lined copper, or plain stainless steel. Copper leaches readily into acidic foods, which is why food-safety codes restrict bare copper surfaces from contacting acidic ingredients. Lined copper keeps the heat-conduction benefit without the direct food contact.

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