Georgia-Pacific · Grease-Resistant Paper Goods
Georgia-Pacific KP640 Kraft Paper, 40#
Uncoated kraft paper carries lower PFAS concern for food contact.
Georgia-Pacific KP640 is plain kraft paper with no reported water or grease resistant coating. Uncoated paper is an inherently lower-risk material for food packaging.
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Uncoated kraft paper, 40 lb weight
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
Category baseline
food packaging is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
The full breakdown
What it's made of and why it matters
KP640 is uncoated kraft paper, meaning it is pure cellulose fiber without plastic laminate, wax, or synthetic resin coating. The 40 lb designation refers to the weight of a 500-sheet ream at standard size, indicating a moderately thick, durable paper suitable for food wrapping and packaging. Because it lacks synthetic coatings, uncoated kraft eliminates risks from coating degradation, Teflon-type coating fumes, and synthetic leachates that plague coated papers and laminates.
The brand's record and disclosure
Georgia-Pacific is a major forestry company (now owned by Koch Industries) with longstanding food-packaging operations but limited public disclosure on chemical testing or food-contact certifications for individual SKUs like KP640. No significant recalls or contamination incidents are on record for this kraft paper line. The company does not prominently advertise food-safety certifications (FDA compliance, NSF mark, or migration testing data) on consumer-facing materials, though kraft paper is generally presumed safe under FDA regulations for indirect food contact.
How it compares in its category
Uncoated kraft paper is one of the lowest-risk materials in food packaging, far safer than coated papers, plastic films, or bleached papers that may retain residual chlorine or dyes. It degrades naturally and poses no microplastic or persistent chemical concern. Among kraft options, KP640 is a standard commercial grade; virgin fiber kraft papers are generally safer than recycled-content grades, which may harbor trace contaminants from prior uses, though KP640's source composition is not published.
If you buy it
Use this paper for ambient-temperature food wrapping (bread, deli items, dry goods). Avoid direct contact with oily or acidic foods if the paper will be stored for weeks, as uncoated kraft can gradually absorb odors and allow slow moisture migration. Do not expose to heat above 200°C (400°F) for prolonged periods, as cellulose yellows and becomes brittle. Store rolls in a cool, dry place to prevent mold or mildew on the cellulose substrate.
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.”
Ink/printing residues
KP640 is typically sold unprinted; if printed versions exist, ink migration depends on ink type and food contact duration. No specific contamination reports identified for this SKU.
Mold and microbial growth during storage
Uncoated cellulose can harbor mold if stored in humid conditions. This is a storage issue, not an inherent hazard in the paper itself, but relevant if the product is kept in damp environments before use.
Residual pulping chemicals (chlorine, lignin)
Modern kraft papers are processed to remove most residual bleach and lignin that could leach into food. No published test data for KP640 specifically, but kraft pulping is mature technology and FDA-compliant papers are presumed safe.
Allergen or fragrance additives
Food-grade kraft papers typically contain no added fragrance or allergen compounds. If KP640 has odor, it is from natural wood pulp or paper aging, not synthetic additives.
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.
More grease-resistant paper goods 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.