Water Fall Glass Carafe 34oz by KOR Water
Lower concern. Glass carafe unlikely to contain PFAS.
KOR Water's glass carafe is made from borosilicate glass with no applied coatings mentioned. Glass itself does not require PFAS-based treatments, making this product lower concern for PFAS contamination.
We flunk more products than we pass. This one earned its grade. How we grade
Material
borosilicate glass carafe
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
What Water Fall Glass Carafe 34oz by KOR Water is made of, ingredients and materials
The Water Fall carafe is borosilicate glass, a laboratory-grade material with high thermal shock resistance and chemical inertness. Borosilicate does not leach metals, BPA, or other endocrine disruptors into water under normal use. Glass is also inert to microbial colonization on its interior surface, which eliminates the biofilm and bacterial-growth risk common in plastic or carbon filter housings.
What’s concerning
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Bacterial growth and biofilm in standing water
Although glass itself does not support microbial adhesion, stagnant water in any carafe can develop algae or bacteria if left in warm light or at room temperature for extended periods. Proper storage (cool, dark) and regular rinsing minimize this risk; it is a usage issue, not a material defect.
Thermal breakage and glass fragments
Borosilicate is durable but not indestructible. Sudden temperature changes (hot water into cold glass) or impact can cause cracking or shattering. Users should handle carefully and inspect for chips before each use.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Metal or contaminant leaching from carafe hardware
The product details do not specify lid material, gasket composition, or any metal fittings. If the carafe includes a stainless steel or plastic lid, those components should not leach under normal conditions, but KOR does not publish material specs for closure parts.
VOC or off-gassing from gasket or seal materials
No off-gassing is documented for this product. If the carafe includes a silicone gasket or rubber seal, these are generally low-VOC and approved for food contact, but KOR does not disclose gasket material or certifications.
PFAS
Borosilicate glass is not typically treated with Teflon-type coating, silicone coatings, or PFAS-containing waterproofing; the material is inherently water-resistant. No PFAS hazard is identified for this product category or material.
Source, ATSDR ↗The full breakdown
The brand's record and disclosure
KOR Water does not publicly disclose third-party certifications (NSF, WQA) or detailed material sourcing for the carafe itself. The brand markets the product as a reusable water container but provides no published safety test results, PFAS stance statement, or manufacturing transparency. This silence is not evidence of a problem, but reflects a low-disclosure posture typical of boutique water brands.
How it compares in its category
Glass carafes are among the lowest-concern material choices for water storage compared to polycarbonate, acrylic, or polypropylene alternatives, which can leach BPA or phthalates over time or with heat exposure. However, this product is a carafe only and does not include filtration media or treatment; it is a storage vessel, not a functional filter system. Compared to filtered-pitcher brands (Brita, PUR), the Water Fall eliminates filter-replacement waste but offers no contaminant removal.
If you buy it
Wash the carafe with warm water and mild soap before first use. Avoid thermal shock by not pouring boiling water into cold glass or placing it directly on heat sources; borosilicate tolerates temperature swings better than soda-lime glass but is not unbreakable. Store in a cool, dark location away from direct sunlight to prevent algae growth if the carafe is left standing with water. Replace only if the glass develops cracks or chips that could shed fragments.
What we don’t know
- Basis
- Model estimate, 82% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- KOR has made none
Formulations change between production runs, so check the current label. How we grade.
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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.