Savarez · Guitar Strings
Savarez Cristal Corum Mixed Tension Classical Guitar Strings
Lower PFAS concern, classical guitar strings use standard materials without typical PFAS application triggers.
Savarez Cristal Corum strings are conventional nylon and steel guitar strings with no public disclosure of Teflon-family coating coatings, water-resistance treatments, or nonstick finishes. Guitar strings are not a product category where PFAS additives are commonly used or documented.
Shop Savarez on Amazon →Material
Nylon-wound steel core with carbon treble strings
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
Savarez Cristal Corum strings use a nylon monofilament treble core (plain carbon nylon on top three strings) wound with steel or bronze on the bass strings, then typically wrapped in nylon or silk over a steel core. This construction is standard for classical guitar strings and does not involve high-temperature manufacturing or chemical coatings that would trigger PFAS application. The materials are inert when vibrating at room temperature and do not leach into skin or saliva during normal playing.
The brand's record and disclosure
Savarez is a French manufacturer with a long history in classical strings (founded 1770) and maintains quality reputation without documented recalls or safety controversies in public records. The company does not appear to publicly disclose PFAS testing or material certifications for individual string products, which is typical for the guitar string category where regulatory pressure is minimal. No evidence of lawsuits, recalls, or formal health warnings against this product line exists in established safety databases.
How it compares in its category
Savarez sits in the mid to high-end of classical string manufacturers and uses material compositions comparable to D'Addario, Augustine, and GHS. Most classical guitar strings across brands use nylon-core construction with steel or bronze winding; Savarez Cristal Corum is a conventional formulation without exotic coatings or additives that would distinguish it for safety concerns. Professional and student players widely use this product without reported adverse effects.
If you buy it
Store strings in a cool, dry place to prevent corrosion of the steel/bronze windings; humidity above 60% can accelerate oxidation. Replace strings every 3-6 months depending on play intensity; worn strings become dull and break more easily but pose no health risk. Wash hands after playing if you have sensitive skin and prefer not to contact oxidized metal residue. Do not expose strings to sustained heat above 50°C (122°F) as extreme temperature could degrade nylon, though normal room conditions pose no risk.
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.”
Metal corrosion and oxidation (steel/bronze windings)
Steel and bronze wound strings oxidize over time in humid conditions, producing a dull grey or green patina. This is cosmetic and does not pose toxicity risk, but oxidized residue on fingers may cause minor skin irritation in individuals with sensitivity to metal compounds.
Nylon polymer degradation under UV exposure
Classical nylon strings are not exposed to direct sunlight during normal storage or use. No evidence of nylon breakdown releasing harmful compounds at room temperature or during typical playing conditions.
Heavy metals in core or windings
Standard steel and bronze alloys used in guitar strings are food-contact-grade equivalents and do not contain lead, cadmium, or other regulated heavy metals. No recalls or testing data suggest contamination in Savarez products.
Allergic response to nickel in steel windings
Some classical guitar strings contain nickel in steel alloys (typically less than 8%). Individuals with nickel dermatitis may experience mild contact irritation on fingers during extended play, though skin contact is indirect and brief.
Microplastic or particulate shedding
Nylon strings do not shed microplastics during normal vibration or playing. The polymer structure is stable under acoustic stress and does not fragment into respirable particles.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 82% 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 Guitar Strings
Martin
Retro Acoustic Guitar Strings
Phosphor bronze, stainless steel, nylon wound
Lower concern, acoustic guitar strings typically use established metals and nylon without water-repellent coating or nonstick coatings.
✓Bare metal or glass, no coating at all
Acoustic360
Ernie Ball Everlast Acoustic Guitar Strings
Phosphor bronze/stainless steel wound on steel core
Lower PFAS concern, acoustic guitar strings use standard metal materials with no known fluorochemical treatments.
✓Bare metal or glass, no coating at all
Dean Markley
Electric Guitar Strings
Steel alloy strings (nickel-plated or stainless steel core)
Lower PFAS concern, steel strings lack typical PFAS applications, but no brand disclosure exists.
✓Bare metal or glass, no coating at all
More guitar strings 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.