Slow Cooker Liners - 4 Pack
Lower concern; uncoated plastic, but doesn't confirm PFAS status.
These appear to be basic food-grade polyethylene liners with no nonstick or water-resistant coatings typically containing PFAS. The brand provides no PFAS statement.
The better-graded swap
Slow Cooking Liners
90/100 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
Plastic (polyethylene or similar polymer liner)
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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What Slow Cooker Liners - 4 Pack is made of, ingredients and materials
Slow cooker liners are thin-gauge polyethylene (PE) or similar polymer film designed as single-use, heat-resistant barriers between food and the ceramic/stoneware slow cooker vessel. PE is a non-crosslinked plastic with minimal chemical additives compared to other food-contact polymers, making unintentional leaching less likely than with plastics containing bisphenols or phthalates. The liners are not chemically bonded to the slow cooker surface, reducing degradation risk from repeated thermal cycling.
What’s concerning
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Microplastic shedding during heating
Polyethylene liners do not melt under typical slow-cooker temperatures, but mechanical stress from food contact or folding could theoretically produce small fragments over time. Risk is low if the liner remains intact and is discarded after single use, but no third-party testing of this specific product for microplastic release is publicly available.
Polymer thermal degradation and VOC off-gassing
Polyethylene at temperatures below 200 degrees Fahrenheit is stable, but additives (antioxidants, UV blockers, slip agents) present in the resin may emit volatile compounds at the high end of slow-cooker operating range. The brand does not disclose additive formulations, and no odor complaints or off-gassing studies specific to this product line are on record.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
BPA & bisphenols
Polyethylene film does not require bisphenol compounds in its formulation and the brand has not disclosed their presence in these liners. No recalls or testing reports indicate BPA leaching from this specific product.
Source, FDA ↗Phthalate plasticizers
Polyethylene in thin-film form typically requires minimal plasticizers; phthalates are more common in PVC or flexible vinyl products. No public evidence suggests phthalate use in slow cooker liners, though the company does not confirm their absence.
Coating degradation or adhesive failure (if layered)
Single-layer PE liners have no glue or laminate layers to degrade. If the product is a multilayer construction, the brand's lack of material disclosure makes independent assessment impossible, but no recalls indicate coating failure.
How is this PFAS grade calculated?
The brand's record and disclosure
The brand has not published specific safety certifications or PFAS-status disclosures for this product line, though the company has faced no major recalls or public health warnings related to slow cooker liners. The brand is owned by Clorox and operates under U.S. FDA food-contact guidance but does not advertise third-party testing for BPA, phthalates, or PFAS on packaging. No established controversies specific to this product category are on record.
How it compares in its category
Slow cooker liners as a category carry lower chemical risk than rigid food-storage containers because they are single-use, non-contact with hot liquid (they form a barrier), and typically discarded after one meal cycle. Polyethylene liners are simpler chemically than some competing brands that use multilayer films or proprietary coating blends. However, the lack of transparent PFAS or additive disclosure from the brand is typical industry-wide; few slow cooker liner manufacturers publish detailed material certifications.
If you buy it
Use liners only within the slow cooker's rated temperature range (typically up to 200-210 degrees Fahrenheit internally); do not reuse them. Inspect the bag before each use for tears or punctures that could allow food contact with the plastic itself. Store unused liners in a cool, dry place away from direct sunlight to prevent polymer brittleness. Discard immediately after use; these are intended as disposable convenience items, not reusable alternatives.
What is not known about PFAS in this product?
- Basis
- Model estimate, 72% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- has made none
Formulations change between production runs, so check the current label. How we grade.
What are the PFAS-free alternatives to Slow Cooker Liners - 4 Pack?
Slow Cooking Liners
- Unbleached parchment paper
- The brand calls it PFAS-free, which we have not verified
- Thermal degradation and smoke release
2 hazards checked on this product, all on its full breakdown.
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.