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Does Non-stick bakeware have microplastics?
The short answer
The same fluoropolymer question as a non-stick pan, with two differences that cut in opposite directions: oven heat is lower and steadier than a hob, but bakeware gets scraped with metal far more often — everyone has cut a brownie in the tin.
Why Non-stick bakeware scores 53
Coating damage is the mechanism, and cutting or lifting portions in the tin is exactly how it happens
A single crack in a non-stick coating released around 9,100 particles in testing; a broken surface released up to 2.3 million
Oven temperatures are steadier and generally lower than a preheated frying pan, which works in its favour
Bakeware is dishwashed and stacked, and stacking scratches coatings against each other
Where the 53 comes from
Five components, added. The page renders the parts rather than a stored total, so the number cannot disagree with the reasoning behind it.
- Packaging contact
- 10 / 30
- Use conditions
- 18 / 25
- Measured release
- 18 / 25
- Polymer behaviour
- 7 / 10
- Processing
- 0 / 10
What material touches the contents, over how much surface area, for how long. Glass and steel score near zero here; a film pressed against fatty food scores near the top.
Heat, abrasion, flexing, repeated opening, reuse beyond design life. The same bottle scores differently in a fridge and in a hot car.
What a laboratory actually counted, for this product or its category. A high number here means real particles were measured, not that the material looks suspicious.
How this specific polymer behaves — brittleness, fat solubility of its additives, thermal stability, whether it is a polymer named in existing restrictions.
What happened before you bought it. Retort sterilisation inside the pack, hot-filling, and pressurised brewing all happen at the most migration-favourable moment.
What we don't know
The Newcastle measurements were on cookware under a controlled scraping protocol, not on bakeware in an oven. Ceramic-coated bakeware is a different chemistry that has essentially never been studied for particle release, despite being sold specifically as the healthier option.
This section is on every page in the database, including the ones where the answer is comfortable. How evidence grades work →
Better options
Ordered by how much they change, not by how much they cost.
Bare or anodised aluminium and steel tins
grease and flour them; what bakeries use
Glass or ceramic bakeware
inert, and better for slow bakes
Never cut in the tin
the single habit that causes most of the damage
Check the one in your kitchen
This page scores Non-stick bakeware as a product. Formulations, packaging and suppliers change, and the specific item you own has its own condition — a scratched pan and a new one are not the same object. Scan yours for a score built from what is actually in front of you.
Scan my cookware & prepSources behind this score
Each with the finding we use it for and the limitation that finding carries — because a study quoted without its boundaries is how this subject got so noisy.
- peer-reviewed2022
Luo 2022 (Newcastle) — A single crack in a non-stick coating released around 9,100 fluoropolymer particles, and a surface with broken coating released up to 2.3 million during a few minutes of simulated cooking.
Limitation: A deliberately damaged coating under a controlled scraping protocol, not normal use of an intact pan. It establishes that damaged non-stick is a particle source; it does not tell you the release from a pan you have not scratched.
- peer-reviewed2023
Hussain 2023 (Nebraska) — Three minutes of microwaving released up to 4.22 million microplastic and 2.11 billion nanoplastic particles per square centimetre of container surface.
Limitation: Polypropylene and polyethylene containers with water and acetic acid, not real food. The headline figure is the worst case in the study, per cm², not per meal.
Frequently Asked Questions
Does Non-stick bakeware have microplastics?
How was the Non-stick bakeware score of 53 calculated?
Is Non-stick bakeware safe?
Why is the confidence only 74%?
Scored next to this
PTFE non-stick frying pan
Aluminium or steel with a PTFE (fluoropolymer) coating
Grade A · 86%
Air fryer non-stick basket
Metal basket with a PTFE or ceramic non-stick coating
Grade B · 72%
Silicone baking mat
Food-grade silicone on a fibreglass mesh
Grade C · 56%
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