Real Evidence
This page documents what most diners never see: PTFE-coated fiberglass release sheets that are worn, overheated, or improperly cleaned on clamshell grills. When these sheets fray, fiberglass fibers and degraded coating can shed where food is prepared. That doesn’t belong anywhere near your burger or chicken.
We’re showing it clearly, so brands can fix it quickly.
The two photos clearly show how damaged sheets expose harmful fiberglass to you food.
Industry Coverage: Total Food Service has covered this problem and the simple path forward.
The following video shows a damaged release sheet on a clamshell grill. The dark PTFE-coated fiberglass sheet shows frayed, white strands at the edge as the press closes on burgers - exactly where loose fibers can transfer if the sheet isn’t replaced on time.
Our Demands (simple, immediate, verifiable)
Real Evidence
This page documents what most diners never see: PTFE-coated fiberglass release sheets that are worn, overheated, or improperly cleaned on clamshell grills.
When these sheets fray, fiberglass fibers and degraded coating can shed where food is prepared. That doesn’t belong anywhere near your burger or chicken.
We’re showing it clearly, so brands can fix it quickly.
The two photos clearly show how damaged sheets expose harmful fiberglass to you food.
Read More:
Industry Coverage: Total Food Service has covered this problem and the simple path forward.
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The following video shows a damaged release sheet on a clamshell grill. The dark PTFE-coated fiberglass sheet shows frayed, white strands at the edge as the press closes on burgers - exactly where loose fibers can transfer if the sheet isn’t replaced on time.
Disclose
Tell customers and employees if fiberglass release sheets are in use.
Publish a timeline
Share a public phase-out plan and progress updates immediately.
Replace
Swap the sheet! Move to non-fiberglass liners that do the same job without woven glass.
Maintain & train
Until the swap is complete, follow strict temperature limits and replacement schedules to prevent fraying.
What You’re Seeing in These Photos
Real sheets from real kitchens.
The photos on the right are close-ups of dirty, worn release sheets submitted by workers and customers:
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Frayed edges where white strands of fiberglass are visible.
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Charred or bubbled coating from overheating.
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Residue transfer on nearby surfaces.
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The Problem and What We’re Demanding
Fast food chains are pressing your meal between Teflon-coated fiberglass sheets on two-sided clamshell grills. When these sheets are overheated, overused, or cleaned the wrong way, they fray, and that means fiberglass fibers can end up where food is prepared and served. Fiberglass is a respiratory and skin irritant and not meant to be ingested. It does not belong anywhere near your burger or chicken.
This isn’t a fringe issue. These sheets are a standard consumable in many fast-food kitchens, yet customers aren’t told, and there’s no clear public policy from most brands on phasing out fiberglass-based liners or even disclosing their use. That’s unacceptable!
We’re a consumer action group and we’re done with restaurants quietly putting our health at risk. We’re shedding light on a real, fixable problem and demanding accountability.