Is Berkey PFAS-free?
Across 9 graded products, Berkey averages A (93/100). On disclosure, the brand says nothing publicly about PFAS. 8 of its products grade C or better. Grades are model-based estimates, not lab results.
Worth buying from Berkey C or better, safest first
Berkey
Gravity Filter
✓Brand claims PFAS-free (unverified)
Berkey
Shower Filter Set
Activated carbon, mineral media, stainless steel housing
Lower PFAS concern; Berkey filters use established carbon/mineral media without Teflon-family coating coatings, but brand offers no explicit PFAS transparency.
✓Bare metal or glass, no coating at all
Berkey
Shower Replacement Filter
Activated carbon, ceramic/filter media
Lower concern, carbon filters themselves don't typically contain PFAS, but manufacturer doesn't publicly address it.
⚠Brand says nothing about PFAS
Berkey
Shower Head Filter Refill Replacement
Activated carbon filter media (likely coconut or coal-based)
Lower PFAS concern; standard activated-carbon shower filters rarely use Teflon-family coating, but Berkey provides no transparency.
⚠Brand says nothing about PFAS
Berkey
Shower Head Replacement Filter
Activated carbon/KDF-55 (coconut shell, mineral media)
Lower PFAS concern; carbon & mineral filters are traditionally PFAS-free, but Berkey's silence on sourcing and testing leaves modest uncertainty.
⚠Brand says nothing about PFAS
Berkey
Tru Pro All-In-One Shower Filter w/ Extra Replacement Filter
Activated carbon filter media, plastic housing
Lower-concern shower filter, but Berkey makes no PFAS disclosure, standard activated carbon is unlikely to contain PFAS.
⚠Brand says nothing about PFAS
Berkey
Shower Head (Brushed Nickel)
Brushed nickel (nickel-plated brass or steel)
Lower-concern shower head; nickel plating & standard fixtures rarely contain PFAS, but Berkey's silence on water-contact materials is typical industry practice.
⚠Brand says nothing about PFAS
Berkey
Big Water Filter System
Activated carbon & ceramic filters, stainless steel/plastic housing
Lower PFAS concern for filter media itself, but brand offers no transparency on housing or filter manufacturing.
⚠Brand says nothing about PFAS
Graded and flagged D and F, we’d swap these
Berkey
Shower Filter (Brushed Nickel)
Brushed nickel housing; activated carbon/KDF-55 filter media
Lower PFAS concern; Berkey's carbon-based filtration avoids known PFAS-containing coatings, but no PFAS disclosure provided.
⚠Stain-resistant finish
Every grade uses the same public rubric. How grades work →