Trilene · Fishing Line
Berkley Trilene XL
Lower concern; fishing line is an unlikely PFAS vector, but manufacturer silence leaves room for doubt.
Berkley Trilene XL is a monofilament nylon fishing line, a primary material not typically associated with intentional PFAS chemistry. However, the manufacturer makes no public disclosure of PFAS content or avoidance. No independent lab data or third-party verification is publicly available to confirm PFAS-free status.
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Monofilament nylon fishing line
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Category baseline
other is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
The full breakdown
What it's made of and why it matters
Berkley Trilene XL is extruded monofilament nylon (typically nylon 6 or nylon 6.6), a single-strand polymer engineered for strength, stretch, and abrasion resistance in freshwater and saltwater environments. Nylon monofilament does not require surface coatings, colorants, or flame retardants that typically introduce hazards in other consumer products. The material is chemically stable under normal fishing conditions (immersion in water, UV exposure, moderate temperature variation) and does not leach into food or skin contact areas.
The brand's record and disclosure
Berkley (owned by Pure Fishing, a subsidiary of Newell Brands) does not publicly disclose detailed material composition or chemical safety testing for fishing lines. No product recalls, contamination incidents, or regulatory actions are documented for Trilene XL. The brand maintains consumer-facing marketing around durability and performance but remains silent on manufacturing process safety and raw material sourcing, which is typical for the fishing tackle industry.
How it compares in its category
Monofilament fishing lines from all major manufacturers (Berkley, Spiderwire, Shimano, Seaguar) share the same basic safety profile because the material class is inherently low-hazard. Braided alternatives (Spiderwire) use polyethylene or Dyneema and carry similar or slightly lower chemical risk. Fluorocarbon lines introduce fluorine chemistry (not PFAS) but are functionally equivalent in safety terms. Berkley Trilene XL is a mainstream choice with no identifiable safety disadvantage versus competitors.
If you buy it
Store in cool, dry conditions away from direct sunlight to prevent polymer embrittlement over time; UV exposure gradually reduces line strength rather than creating chemical hazards. Replace line every 1 to 2 seasons or when visible abrasion, cloudiness, or loss of casting distance occurs. Wash hands after handling to remove residual manufacturing dust if sensitive to particulates, though this is rarely reported. Dispose of used line in regular trash or dedicated recycling programs; monofilament does not biodegrade and should never be left in water or natural environments.
Beyond PFAS: other things we checked
Established hazard classes for this product type, assessed from public information. These never change the PFAS grade; a Likely flag caps the Verdict at “Buy with care.”
Polymer degradation and microparticle release
Nylon monofilament exposed to prolonged UV and thermal stress may fragment or shed microscopic particles, especially when handled roughly or cast repeatedly. This is primarily an environmental concern rather than a direct health hazard during use, but cumulative shedding into waterways is poorly quantified.
Contaminants in raw nylon resin
No published testing or recalls document heavy metals, monomers, or process residues in Berkley Trilene XL nylon. Standard nylon food-grade certifications do not apply to fishing line, so third-party verification is absent, but marine and freshwater use does not involve ingestion or skin absorption.
Colorant or dye safety in pigmented variants
Some Trilene XL products are sold in colors (fluorescent green, blue, red) requiring organic or inorganic dyes incorporated into the polymer. No disclosed testing confirms dye fastness, leaching, or toxicity, though color migration into water during long-term submersion is theoretically possible under extreme conditions.
Manufacturing process emissions and worker exposure
Extrusion of nylon monofilament can generate thermal decomposition byproducts and volatilized oligomers in the factory. Berkley does not disclose manufacturing facility standards or emissions controls, but no occupational safety complaints or environmental violations are documented for the brand.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 72% confidence. It is not a lab result.
No independent PFAS lab test is on record for this exact product. A lab test could move the score in either direction.
The brand has not made a specific, verifiable PFAS-free statement, so part of this score reflects that missing disclosure rather than a confirmed material.
Formulations and coatings change between production runs. Always check the current label before buying.
Safer alternatives in Fishing Line
Stren
Original
Monofilament nylon fishing line
Lower PFAS concern for a fishing line product; no coating or treatment typical of PFAS carriers.
⚠Risky category by default
Maxima
Ultragreen One Shot
Lubricant/chain oil (mineral or synthetic base)
Lower PFAS concern for a chain lubricant; minimal Teflon-family coating/waterproofing risk profile.
⚠Risky category by default
Seaguar
Blue Label
Fluorocarbon fishing line (monofilament)
Fluorocarbon fishing line may contain PFAS; insufficient public data to grade definitively.
⚠Risky category by default
More fishing line grades
How we score: every product runs through the same public 0–100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.