Reynolds Regular Size Slow Cooker Liners
Skip until Reynolds discloses coating; grease-resistant liners often contain PFAS.
Reynolds' polyethylene liners repel grease and moisture without revealing coating chemistry. Grease-resistant food-contact liners commonly rely on PFAS-based treatments.
The safe swap
If You Care
Slow Cooking Liners
100/100 safety
Same rubric that flunked this product. The swap earned Excellent.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
polyethylene film with grease-resistant coating
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
What’s concerning
Waterproof / stain-resistant treatment
Water-repellent treatments have historically contained PFAS chemicals.
Category baseline
PFAS exposure happens more often with clothing products.
No PFAS disclosure
The company has not publicly discussed PFAS in this product.
Coating migration (unknown additives)
The grease-resistant coating composition is not disclosed. Fatty or acidic foods in a slow cooker can promote migration of coating additives into food, but risk is low at typical slow-cooker temperatures (170-210°F) if the coating is stable.
Thermal degradation of polyethylene film
Polyethylene softens above 212°F. Slow cookers on high setting may approach or briefly exceed this; localized thinning or rupture of the liner could occur with prolonged use or over-fill, though this is more a functionality failure than a chemical hazard.
PFAS
Grease-resistant treatments on single-use liners often rely on fluorinated compounds, but Kroger has not stated whether this product uses PFAS, silicone, or other chemistries. This is flagged as a PFAS vector pending disclosure.
Source: ATSDR ↗What’s reassuring
Microplastic release from coating wear
No reports of microplastic shedding from Kroger slow cooker liners. However, physical wear of coatings over time and reuse (if attempted) could theoretically release small particles; single-use design mitigates this risk.
The full breakdown
What it's made of and why it matters
Reynolds Regular Size Slow Cooker Liners are polyethylene film with a grease-resistant coating applied to the inner surface. Polyethylene itself is a stable, food-contact plastic below its melting point (~250°F), but the unnamed grease-resistant treatment is the critical unknown. Slow cookers typically operate at 170-210°F depending on setting, so thermal stress is moderate; however, fatty foods and prolonged contact can degrade coatings or cause migration of additives into food. Kroger has not publicly disclosed the coating chemistry (silicone, wax, or potentially PFAS-based), leaving a transparency gap.
The brand's record and disclosure
Kroger (the manufacturer listed here) has no established public position on PFAS in food-contact products and has not released ingredient statements for this liner's coating. No independent recalls or safety warnings are on record for this specific product. Kroger is a major retailer with private-label manufacturing but does not actively promote third-party testing or certification (e.g., FDA migration studies) for its slow cooker liners. The silence on coating composition is typical for the category but reflects minimal consumer-facing safety communication.
How it compares in its category
Slow cooker liners are a convenience product with inherent material trade-offs. Uncoated polyethylene would allow grease to leak; grease-resistant coatings solve this but introduce unknown additives. Reynolds and Kroger liners occupy the budget segment and are not marketed as PFAS-free, unlike some premium alternatives (e.g., some parchment-lined or silicone-based options). Most major brands in this category do not disclose coating chemistry, so Kroger is neither worse nor notably better than competitors, though the absence of certification or testing data is the norm rather than a red flag.
If you buy it
Use liners only in slow cookers set to low (170-180°F) or high (190-210°F) for the intended cooking duration; do not repurpose for oven use or direct heat above 212°F. Replace liners if the coating visibly flakes, becomes sticky, or shows discoloration. Avoid prolonged storage of cooked fatty foods in the cooker while lined; transfer to glass or ceramic containers after cooking. Do not reuse a liner; these are single-use products and repeated heating increases the risk of coating breakdown.
What we don’t know
- Basis
- Model estimate, 45% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Kroger has made none
Formulations change between production runs, so check the current label. How we grade.
Safer alternatives in Slow Cooker Liners
If You Care
Slow Cooking Liners
Unbleached parchment paper
Thermal degradation and smoke at high heat
Limited concern
Mold or bacterial growth if stored wet or damp
Limited concern
Adhesion failure and paper fragments in food
Limited concern
Lower-concern option; parchment with verified PFAS-free certification.
⚠Risky category by default
Reynolds
(2 pack) Reynolds Kitchens Slow Cooker Liners, Small (1-3 quart), 5 Count
polyethylene/plastic liner
Lower PFAS concern; basic plastic unlikely to contain PFAS.
⚠Risky category by default
Glad
Slow Cooker Liners - 4 Pack
Plastic (polyethylene or similar polymer liner)
Lower concern; uncoated plastic, but Glad doesn't confirm PFAS status.
⚠Risky category by default
More slow cooker liners grades
How we score: every product runs through the same public 0–100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.