Is PFBS Banned? EU vs US Status, Risks & Where It Hides
TL;DR: PFBS is banned in the EU but allowed in the US (pfas in packaging).
CAS 375-73-5.
Other names: perfluorobutanesulfonic acid
Is PFBS banned in the EU?
| EU status | Banned |
|---|---|
| US status | Allowed |
| Risk level | high |
| Where it shows up | fast-food wrappers, microwave popcorn bags, molded fiber bowls, grease-resistant takeout containers |
| CAS number | 375-73-5 |
What is PFBS?
PFBS is a short-chain PFAS used as a replacement in coatings and packaging.
Why is PFBS used in food?
PFAS are used to make packaging grease-, water- and stain-resistant.
Is PFBS dangerous? Documented risks
PFAS are persistent 'forever chemicals' linked to cancer, immune and thyroid effects. The EU is phasing out PFAS in food-contact materials; several are banned, while US federal limits lag behind.
Common US products containing PFBS
- fast-food wrappers
- microwave popcorn bags
- molded fiber bowls
- grease-resistant takeout containers
How to avoid PFBS: safer alternatives
Choose PFAS-free packaging, avoid grease-resistant wrappers, and favor brands with PFAS-free pledges. BannedPantry flags packaging chemistries of concern.
Frequently asked questions about PFBS
Is PFBS banned in the EU?
Yes — PFBS is banned in the European Union, while it remains allowed for use in the United States.
Is PFBS allowed in the US?
PFBS is allowed in the United States. US regulators have not imposed the same restrictions that apply across the EU.
Why is PFBS a concern?
Independent reviews flag PFBS for documented health or environmental risks, which is why EU regulators acted while the US has not.
How do I avoid PFBS?
Choose certified-organic or EU-imported products, check labels, and scan barcodes with BannedPantry to flag PFBS instantly.
Scan any product's barcode and instantly see if it contains PFBS or other ingredients banned overseas.
Scan a product free →Related pfas in packaging
Avoiding banned food additives? Check your beauty shelf, too.
Sources
- Chemicals in cosmetics — CHEM Trust
- EFSA food additives — EFSA
- FDA Food Additives — U.S. FDA
Our scores are never influenced by brands. Last updated 6/11/2026.