Good Cook Review, Is Good Cook Non-Toxic?
PFAS Authority is a scoring system, not a laboratory. We do not test products ourselves. Grades are model-based, built from published ingredients, materials, certifications, brand disclosures and third-party lab results where they exist. See the rubric.
Across 11 graded products, Good Cook averages Poor (33/100). On disclosure, the brand says nothing publicly about PFAS. None of its products grade Good or better yet. Grades are model-based estimates, not lab results.
Graded and flagged Poor and Bad, we’d swap these
Good Cook
Flexible Non Slip Silicone Cutting Board Mat
silicone mat
Silicone degradation and microparticle release
Extended use with sharp knives or abrasive cleaning may cause surface microtearing. While…
Manufacturing residues or additives
Food-grade silicone should be cured and free of uncrosslinked oligomers, but third-party…
Heat resistance limits
Silicone mats are designed for room-temperature food prep, not heat exposure. Prolonged…
Silicone mats rarely contain PFAS.
⚠Risky category by default
Good Cook
Black & White Silicone Work Mat - 20" x 20"
silicone work mat
Silicone leaching (oligomers)
Uncrosslinked siloxane oligomers can migrate into fatty foods at elevated temperatures…
Mold and bacterial growth if wet-stored
Silicone's porous microstructure can harbor moisture if not dried thoroughly after…
Silicone mats pose minimal PFAS risk, verify no nonstick coating.
⚠Risky category by default
Good Cook
Flexible Cutting Board Set
flexible silicone or TPR rubber
Polymer thermal degradation and particle shedding
Silicone and TPR rubber can soften, warp, or shed microscopic particles when exposed to…
Bacterial and mold colonization
Flexible boards with textured or porous surfaces may trap food particles and moisture in…
Surface discoloration and staining
User reports on retailer sites indicate that Good Cook flexible boards stain easily from…
Flexible boards are usually silicone, lower PFAS risk than nonstick cookware.
⚠Risky category by default
Good Cook
Parchment Paper Roll
Silicone-treated paper; silicone or wax base coating
Moderate caution; parchment coatings are not definitively documented PFAS-free, but silicone-based treatments are less typical PFAS vectors than Teflon-family coating.
⚠Waterproof or stain-proof treatment
Good Cook
Bradshaw International Good Cook Sweet Creations Paper Sheets
Bleached paper with grease-resistant coating (unspecified)
Avoid; grease-resistant food paper likely contains PFAS, brand silent on composition.
⚠Waterproof or stain-proof treatment
Good Cook
8 Sheets Good Cook Parchment Paper 12 X 16 White
Paper with silicone or Teflon-family coating-based grease-resistant coating
Typical parchment with undisclosed coating chemistry poses moderate PFAS risk.
⚠Waterproof or stain-proof treatment
Good Cook
Parchment Paper Baking Sheets 12 x 16, Set of 2, 16pc
silicone-coated paper
Silicone-coated parchment typically poses lower PFAS risk, but Good Cook won't disclose specifics.
⚠Waterproof or stain-proof treatment
Good Cook
Parchment Paper Non-Stick 20 Square Feet
Paper with non-stick coating (unspecified)
Non-stick coating degradation and fume release
Without public specification, the coating may contain fluorinated polymers (Teflon-type…
Coating leaching into food (migration)
Silicone and wax coatings can migrate into fatty foods (oils, butter, meat fats) at…
Proprietary additives (undisclosed)
Manufacturers often use trade-secret release agents, stabilizers, or slip compounds in…
Avoid; parchment paper non-stick coatings often rely on PFAS; Good Cook makes no disclosure.
⚠Nonstick, coating undisclosed
Good Cook
Bradshaw International Sweet Creations High-Temp Silicone Oven Baking Mat
silicone, coating unspecified
PFAS
Silicone mats often require mold-release agents or topcoat additives during manufacture.…
Fiberglass mesh exposure if torn
Many silicone mats are reinforced with fiberglass to prevent sagging. If the silicone…
Bacterial or mold growth if poorly dried
Silicone's porous microscopic structure can harbor bacteria or mold if mats are stored…
Silicone mat likely poses lower PFAS concern, but coating is unclear.
⚠Nonstick, coating undisclosed
Good Cook
Hecnuo Flexible Nonslip Cutting Mat
Rubber or silicone mat with unknown nonslip coating
Nonslip coating leachables (identity unknown)
The undisclosed nonslip topcoat could contain phthalates, secondary plasticizers, or…
Rubber degradation and off-gassing
If the base is synthetic rubber rather than food-grade silicone, prolonged storage in…
Coating durability and peeling
User reports online indicate nonslip coatings on budget mats can peel or flake with…
Nonslip coating composition is unclear, ask the seller.
⚠Nonstick, coating undisclosed
Good Cook
Good Books Good Cook Flexible Chopping Mats
Flexible silicone or PVC chopping mat, coating unspecified
Phthalates
Good Cook mats may contain PVC instead of or blended with silicone; PVC is commonly…
Coating degradation and microparticle release
Any unspecified surface treatment or coating on the mat may degrade over time or with…
Leachable additives from base polymer
Flexible silicone and PVC formulations typically contain uncrosslinked oligomers and…
Lack of food-contact certification
The product carries no published NSF, FDA food-contact clearance, or equivalent…
No coating details disclosed, look for brands with better transparency.
⚠Nonstick, coating undisclosed
Every grade uses the same public rubric. How grades work →