Materials explainers

Sourced answers to common kitchen-materials questions, each linking into our Pass / Partial / Fail guides.

Updated 2026-11-03

Is stainless steel cookware non-toxic?

What FDA food-contact notes and materials sheets say about stainless steel pans, plus how we score uncoated vs coated cookware.

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Updated 2026-11-03

Best non-toxic cutting board material?

Wood vs plastic vs composite cutting boards: USDA hygiene guidance, classic UC Davis research, and how No Coating Kitchen scores materials.

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Updated 2026-11-03

Glass vs plastic food storage

Glass vessels vs plastic boxes and lids: heat, wear, FDA BPA notes, and why most glass sets still score Partial on our site.

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Updated 2026-11-03

PTFE vs ceramic nonstick: what actually changes?

Both PTFE and ceramic nonstick are coatings on the cook surface. FDA notes on PFAS cookware coatings, and why our directory Fails coated pans either way.

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Updated 2026-11-03

What makes a kettle plastic-free?

A plastic-free kettle claim should mean the hot-water path, not only a stainless shell. How we score windows, seals, and reservoirs.

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