Stanley · Insulated Drink Tumblers
Stanley Dining Stanley X Calia Quencher Tumbler
Low risk. Stainless steel core unlikely to hold PFAS.
Stanley Quencher is primarily stainless steel, a non-fluorinated material with low PFAS risk. Plastic lid composition is unknown, but no brand concerns are documented.
We flunk more products than we pass. This one earned its grade. How we grade
Material
stainless steel tumbler with plastic lid
Lab data
No public lab test
What Stanley Dining Stanley X Calia Quencher is made of, ingredients and materials
This tumbler is primarily 18/8 stainless steel (the main vessel), which is highly resistant to leaching and corrosion. The lid is plastic, likely polypropylene or similar, which contacts liquid only when sealed. Stainless steel food-contact surfaces do not release lead, cadmium, or other heavy metals under normal use, and the material is chemically inert to hot and cold beverages.
What’s concerning
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Plastic lid degradation and leaching
The plastic lid material is not specified in public product information. If it is polypropylene (likely), it is generally food-safe, but heating above manufacturer limits or degradation over time could release trace amounts of oligomers. Lid replacement is practical and inexpensive.
Thermal stress on plastic lid seal
Rapid temperature changes (freezer to hot liquid) may cause the plastic lid to warp or crack over time, compromising seal integrity. This is a durability concern rather than a chemical hazard, but damaged lids should be replaced.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Stainless steel corrosion under acidic conditions
Food-grade stainless steel is highly resistant to corrosion from common beverages. No reported incidents of chromium or nickel leaching from Stanley stainless steel drinkware have been documented in public records.
Heavy metals
Stainless steel tumblers do not typically use lead-based paints or cadmium coatings. The Stanley X Calia design appears to use direct stainless steel finish or screen printing on the exterior, neither of which is associated with heavy metal leaching into food contact surfaces.
Source, FDA ↗PFAS
This stainless steel tumbler does not advertise a non-stick interior or water-resistant exterior coating. No evidence suggests PFAS-containing coatings are used on the product itself, though PFAS may be present in manufacturing processes (graded separately).
Source, ATSDR ↗The full breakdown
The brand's record and disclosure
Stanley has not publicly disclosed detailed materials testing or third-party certifications for this specific tumbler model. The brand has no known recalls for chemical leaching in drinkware. Stanley's parent company has faced no major controversies regarding heavy metals or chemical coatings in stainless steel products, though the company remains largely silent on PFAS use in manufacturing.
How it compares in its category
Stainless steel tumblers like this one present lower concern than ceramic-coated alternatives (which may contain lead in glazes) or plastic-only bottles (which pose BPA or phthalate risks if not food-grade certified). The plastic lid is a common design feature across the category; this model does not stand out as unusual in that regard. Stainless steel is a more inert choice than aluminum, which can leach small amounts under acidic conditions.
If you buy it
Keep the plastic lid away from direct contact with hot liquids above 60°C (140°F) if possible; hand-wash rather than dishwasher if the lid is not rated for high heat. Replace the lid if it becomes visibly cracked, cloudy, or develops an odor. The stainless steel body is durable and does not require special care beyond normal washing. Avoid prolonged storage of acidic beverages (citrus, vinegar) in the tumbler, as this may accelerate any micro-scale corrosion of the steel.
What we don’t know
- Basis
- Model estimate, 72% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Stanley has made a specific claim
Formulations change between production runs, so check the current label. How we grade.
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More insulated drink tumblers 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.