Does Berkey Filter Remove PFAS? An Honest Review

Berkey water filters have a loyal following. They are gravity-powered, need no electricity or plumbing, and the company claims they remove a wide range of contaminants including PFAS. But when you dig into the details, the picture gets complicated. There are EPA stop-sale orders, no independent NSF certification, counterfeit filter elements circulating online, and PFAS testing that covers only a fraction of the volume a certified filter must demonstrate. If you are considering a Berkey specifically for PFAS, here is what you need to know before spending your money.

For more on PFAS-free water solutions, see our guide to PFAS free water filters and our countertop water filter comparison.

What Berkey Claims About PFAS Removal

Berkey states that their Black Berkey Purification Elements use a combination of activated carbon and ion exchange to reduce PFAS from drinking water. The company has published lab results showing reduction of PFOA and PFOS.

Here is the problem: those published tests covered only about 200 gallons of water. NSF/ANSI Standard 53 certification, which is the recognized benchmark for PFAS filtration claims, requires testing through the full rated filter life. For a filter element that Berkey rates at 3,000 gallons, 200 gallons is roughly 3% of the total capacity. That means nobody has independently verified whether the filter still removes PFAS at 1,000 gallons, 2,000 gallons, or anywhere near the end of its life.

That distinction matters. Carbon filters lose effectiveness over time as the media becomes saturated. A filter that removes 99% of PFAS when new might remove 30% when it is half spent. Without full-life testing, there is no way to know.

The EPA Controversy and What It Means for You

In 2022 and 2023, the EPA issued Stop Sale, Use or Removal Orders (SSUROs) against Berkey’s parent company, New Millennium Concepts Ltd. The issue was the silver embedded in Black Berkey filter elements. The EPA classifies silver-containing products as pesticidal devices under FIFRA (the Federal Insecticide, Fungicide, and Rodenticide Act) when the silver is intended to inhibit bacterial growth. Berkey disputes this classification.

As of early 2026, authentic Black Berkey replacement filter elements are not being manufactured while the legal dispute continues. This has created two practical problems for consumers:

• Counterfeit filters are circulating on third-party marketplaces. Knockoff elements may not filter anything effectively, and there is no easy way to verify authenticity.
• Replacement availability is unreliable. If you buy a Berkey system today, getting genuine replacement filters down the road is uncertain.

Berkey has introduced a newer product line called the Phoenix with pending NSF certification, but that certification has not been confirmed as of this writing.

How Berkey Compares to Certified PFAS Filters

The core issue is certification. Berkey has never held NSF/ANSI 53 or P473 certification for PFAS reduction. The company has tested “to the protocol,” but testing to a protocol and earning third-party certification through an accredited body are fundamentally different things. Certification requires independent auditing, production facility inspections, and full-life performance verification.

Here is how Berkey stacks up against certified alternatives:

Feature	Berkey	AquaTru (RO)	ZeroWater (Ion Exchange)
PFAS certification	None	NSF P473	IAPMO (PFOA/PFOS)
PFAS testing scope	~200 gallons	Full filter life	Full filter life
EPA compliance	Stop-sale orders	Compliant	Compliant
Filter availability	Uncertain	Readily available	Readily available
Price range	$367+	~$430	~$29-54

Certified Alternatives That Actually Remove PFAS

If you want verified PFAS removal with none of the uncertainty, these options deliver:

Best certified countertop option: The AquaTru Classic Countertop Reverse Osmosis carries NSF/ANSI 42, 53, 58, 401, and P473 certifications. That P473 specifically covers PFOA and PFOS reduction through the full filter life. It is a 4-stage RO system that sits on your counter with no plumbing, similar to how a Berkey operates but with reverse osmosis instead of gravity carbon filtration. At around $450, it costs about $80 more than a Big Berkey but comes with the certifications Berkey lacks.

Best budget alternative: The ZeroWater 32-Cup Water Filter Dispenser uses 5-stage ion exchange filtration that is IAPMO certified for PFOA/PFOS reduction. At around $41, it is a fraction of the Berkey’s price. Filters need replacing every 2 to 3 months, but they are widely available and inexpensive. It also comes with a TDS meter so you can track when the filter needs changing.

Best under-sink upgrade: If you are ready to move beyond countertop filtration entirely, the Waterdrop G3P800 Tankless Reverse Osmosis carries NSF/ANSI 42, 53, and 58 certifications with IAPMO certification for PFOA/PFOS. It pushes 800 gallons per day with a 3:1 pure-to-drain ratio, which is far more efficient than older RO systems. It requires under-sink installation but delivers the most thorough PFAS removal available for home use.

Should You Still Buy a Berkey?

That depends on what you are trying to filter and how much uncertainty you are comfortable with. Berkey filters have a strong track record for taste improvement and pathogen reduction based on the company’s own testing. Users consistently report excellent-tasting water, and gravity operation without electricity is a genuine advantage during emergencies and power outages.

But for PFAS specifically, the lack of independent certification, the limited testing scope, the EPA legal issues, and the replacement filter uncertainty make it hard to recommend Berkey as your primary PFAS defense. If you already own a Berkey with genuine filters, it is likely providing some PFAS reduction. But if you are buying new specifically for PFAS, a certified system gives you verified performance that Berkey cannot currently match.

For related reading, check out our guides to PFAS free reverse osmosis systems, removing PFAS from well water, and PFAS free water bottles. The PFAS Free Life Database maintains a broader list of verified PFAS-free products and water filtration systems.

Frequently Asked Questions

Does the Berkey water filter remove PFAS?

Berkey claims their Black Berkey Purification Elements reduce PFOA and PFOS using activated carbon and ion exchange. However, the company’s published testing covered only about 200 gallons, which is roughly 3% of the filter’s rated capacity. Without full-life testing or NSF/ANSI 53 certification, there is no independent verification that the filter maintains PFAS removal performance over thousands of gallons of use. Some reduction is likely, but the degree of reduction at mid-life and end-of-life is unknown.

Why does Berkey not have NSF certification?

Berkey has chosen not to pursue NSF/ANSI certification through an accredited third-party body. The company has stated that it tests “to the protocol,” but this is different from formal certification, which requires independent auditing, production facility inspections, and testing through the full rated filter life. Additionally, Berkey cannot currently be sold in California due to lack of lead-free certification under the state’s requirements.

What is the best alternative to Berkey for PFAS removal?

For a countertop system that works similarly to a Berkey, the AquaTru Classic is the closest certified alternative. It sits on your counter, needs no plumbing, and carries NSF P473 certification specifically for PFAS. For a budget option, the ZeroWater dispenser is IAPMO certified for PFOA/PFOS and starts under $30. For maximum PFAS removal, an under-sink reverse osmosis system like the Waterdrop G3P800 removes more than 90% of all PFAS compounds.

*Research reference: PureCity Berkey Review 2026

Drinking Water Filter Berkey Review

Duke University/NC State PFAS Filtration Study*