Parchment paper is generally considered safe and non-toxic for standard baking, provided it is used correctly and within manufacturer temperature limits. However, heating it beyond recommended levels or using the wrong type of coated paper poses distinct health risks:
The silicone coating used in parchment paper is different from the PTFE coatings found in some non-stick pans, which can release toxic fumes at high temperatures. Thus, parchment paper is generally safe for cooking.
To find PFAS-free parchment paper, look for unbleached, chlorine-free, and certified compostable brands. Independent testing identifies these top, non-toxic options that contain no intentionally added PFAS:
Parchment paper is generally considered safe and non-toxic for everyday baking and cooking, provided you use it correctly. However, not all brands are created equal, and improper use can introduce hazards.
Parchment paper can pose health, safety, and environmental issues, primarily because of how it is manufactured and used.
Although parchment never stopped being used (primarily for governmental documents and diplomas) it had ceased to be a primary choice for artists' supports by the end of the 15th century Renaissance. This was partly due to its expense and partly due to its unusual working properties.
Parchment paper and aluminum foil are generally safe, but they have distinct health profiles. Parchment is chemically inert and non-reactive, while foil can leach metal into food—especially with acidic ingredients. However, some parchment papers are bleached or contain synthetic coatings, making unbleached, silicone-coated options the safest choice.
King Arthur Unbleached Parchment Paper is designed to be PFAS-free. Instead of relying on PFAS, it uses a high-quality silicone coating that is considered safe for standard baking applications.
To avoid toxic chemicals like PFAS, chlorine bleach, and heavy metals, switch to certified non-toxic, unbleached parchment paper. These alternatives use natural silicone (derived from sand) for non-stick properties and are totally chlorine-free.
Summary: Silicone baking mats are a great baking alternative as they are heat-resistant and therefore safe to use in the oven. Use them when making traditional baked goods like cookies. Aluminum foil is a viable substitute for parchment paper too, but again, depends on your intended usage.
While there is no immediate medical treatment or magic pill to "flush" PFAS out overnight, your body eliminates them naturally over time through bodily functions like urination, sweating, and blood loss (such as menstruation).
Third-party tests indicate that Kirkland Signature Culinary Parchment paper contains detectable, though low, levels of fluorine, pointing to the possible presence of trace or incidental PFAS. While these trace levels likely mean PFAS were not intentionally added, it is generally not recommended by some clean-living advocates.
Unbleached parchment paper is generally considered the healthier and more environmentally conscious choice. While both papers are perfectly safe to use, unbleached paper avoids the chlorine-based bleaching process and potential chemical residues.
PFAS-free parchment paper is designed to handle high-heat baking without releasing "forever chemicals". Reputable brands rely on natural silicone (derived from sand and quartz) or sulfuric acid treatment rather than toxic coatings to achieve their non-stick properties.
Aluminum foil is generally safe for everyday use, but it can be problematic when exposed to high heat or acidic foods, which cause aluminum to leach into your meal. It also poses risks for improper food storage, uneven baking, and environmental waste.
Types of paper that are not recyclable are coated and treated paper, paper with food waste, juice and cereal boxes, paper cups, paper towels, and paper or magazine laminated with plastic.
Parchment paper can pose toxicity concerns depending on how it is manufactured and the coatings applied to it. The primary risks stem from three specific factors:
The best everyday parchment paper substitute for baking is aluminum foil lightly coated with butter or cooking spray. For cooking or roasting, a simple coating of oil straight on the pan will work perfectly.
For a completely non-toxic setup, the best baking pan materials are pure glass, unglazed ceramic, and 100% stainless steel. These materials contain zero synthetic chemicals like Teflon, PFOA, or PFAS, ensuring absolutely nothing leaches into your food at high baking temperatures.
Consumer studies and independent laboratory testing have found that Ziploc brand bags do not contain detectable levels of PFAS ("forever chemicals").
Yes, parchment paper is generally considered less toxic than aluminum foil. Because it is made from processed cellulose, it is chemically inert and doesn't leach metals or chemicals into your meals.
Avoiding PFAS while cooking
If possible, use stainless steel or cast-iron pans. These materials are safer alternatives to PFAS coatings and can be non-stick when used correctly.
People wrap foil around doorknobs as a viral DIY alarm and visual deterrent. The theory is that if an intruder tries to turn the handle from the outside, the crinkling noise will wake you, or the ripped foil will let you know someone attempted to enter while you were asleep.
They stopped making true tin foil in the 1940s because aluminum was cheaper, lighter, more durable, and—crucially—did not leave a metallic aftertaste on food. Although true tin foil hasn't been produced for nearly a century, the name "tin foil" stuck around out of habit.
Acid or salt – for instance from sliced apples, gherkins, feta cheese, or sausagemeat – can liberate aluminium ions from the foil, and these may go over (migrate) into the food.