PFAS in Cookware & Food Packaging: What You Need to Know

PFAS in cookware and food packaging are a common source of exposure to “forever chemicals” in everyday life.

This includes non-stick cookware and common food packaging.

While these chemicals improve convenience, they also introduce a chronic, low-level exposure pathway through food — one that is often overlooked.

A structured, practical approach to reducing exposure is reasonable.

What Are PFAS and Why Are They Used?

PFAS are a large group of synthetic chemicals designed to resist:

Heat
Oil and grease
Water

This makes them useful in:

Non-stick cookware (e.g. PTFE coatings like Teflon)
Fast food wrappers and containers
Microwave popcorn bags
Baking paper and greaseproof packaging
Disposable plates and takeaway containers

The key issue is persistence — PFAS do not break down easily in the environment or the human body.

How PFAS Enter Food

PFAS can transfer into food through several mechanisms:

1. Cookware Degradation

Scratched or worn non-stick coatings can release particles
High heat can accelerate breakdown of coatings
Older cookware (pre-2013) may contain higher-risk compounds like PFOA

2. Grease-Resistant Packaging

PFAS coatings prevent oil from soaking through paper
These chemicals can migrate into hot or fatty foods

Common examples include:

Fast food wrappers
Pizza boxes
Bakery bags
Microwave popcorn packaging

3. Heat and Fat Increase Transfer

PFAS migration is higher when food is:

Hot
Fatty
Stored for longer periods in packaging

This makes takeaway and processed foods a key exposure pathway.

What Does the Research Say?

Research consistently shows:

PFAS are detectable in human blood globally
Diet is considered a primary exposure source
Food packaging is a contributing pathway, especially for frequent takeaway consumption

Some studies have found:

Higher PFAS levels in people consuming more fast food
Migration from packaging into food under real-world conditions
Associations between PFAS exposure and cholesterol, immune effects, and developmental outcomes

Regulatory shift:
Compounds like PFOA and PFOS are being phased out, but replacement PFAS are still persistent and less well studied.

Why This Matters

PFAS exposure from cookware and packaging is:

Low dose per exposure
But frequent and cumulative

Unlike acute toxins, the concern is:

Long biological half-life (years)
Ongoing accumulation
Multiple exposure sources (water, dust, food, packaging)

This makes small, repeated exposures worth managing.

How to Reduce PFAS Exposure from Cookware

You don’t need to eliminate everything — focus on practical improvements.

1. Replace Damaged Non-Stick Pans

Discard pans that are scratched or flaking
These are more likely to release particles

2. Avoid High Heat on Non-Stick

Keep temperatures moderate
Avoid empty pan heating

3. Consider Alternative Materials

Lower-risk options include:

Stainless steel
Cast iron
Carbon steel
Ceramic-coated cookware (note: varies in quality)

4. Be Cautious with “Non-Stick” Marketing

“PFOA-free” does not mean PFAS-free
Look for clearly stated PFAS-free materials where possible

How to Reduce PFAS Exposure from Food Packaging

1. Reduce Frequent Takeaway Consumption

This is one of the biggest exposure drivers.

2. Transfer Food Out of Packaging

Don’t store hot food in wrappers or boxes
Move to glass or ceramic containers

3. Be Cautious with Microwave Packaging

Avoid heating food in original packaging (especially paper-based)
Use glass instead

4. Limit Grease-Resistant Paper Use

Baking paper and wrappers may contain PFAS
Look for unbleached or PFAS-free alternatives

What About “PFAS-Free” Products?

There is increasing availability of PFAS-free cookware and packaging.

However:

Labelling is inconsistent
Some replacements are not well studied
“Greenwashing” can occur

A practical approach is to:

Prioritise simple, inert materials (steel, glass, cast iron)
Avoid over-reliance on coatings

How This Fits with Other Exposure Sources

PFAS exposure is cumulative across:

Drinking water
Food
Indoor dust
Consumer products

This means reducing exposure in multiple small ways is more effective than focusing on a single source.

For example:

Improving water filtration
Reducing packaged food reliance
Adjusting cookware choices

Together, these changes meaningfully lower total exposure.

Practical Takeaways

PFAS are commonly used in cookware and food packaging
Heat and fat increase chemical transfer into food
Exposure is chronic and cumulative, not acute
Replacing damaged non-stick cookware is a high-impact step
Reducing takeaway and packaged food helps significantly
Simple materials like stainless steel and glass are reliable alternatives

PFAS in Cookware and Food Packaging