Cuppa · Insulated Drink Tumblers
Igloo 32 oz Flip n Sip Travel Mug
Unknown coating status; no PFAS disclosure from brand.
Igloo/Cuppa travel mugs typically use BPA-free plastics but provide no PFAS information. Interior coatings or sealants are undisclosed, creating moderate uncertainty.
We flunk more products than we pass. This one earned its grade. How we grade
Material
Plastic (BPA-free claim typical for Igloo/Cuppa travel mugs)
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
other 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
This is a double-wall plastic travel mug, typically constructed from polypropylene (PP) or similar food-grade plastic resin for the main body and lid components. Igloo/Cuppa market these as BPA-free, which means bisphenol A is excluded from the plastic formulation itself. However, the interior coating (likely applied for heat resistance and durability) remains unspecified by the brand, which is the critical gap: manufacturers often apply water-resistant coatings to plastic drinkware that may contain PFAS (PFAS "forever chemicals") as a manufacturing convenience, though this is not always disclosed.
The brand's record and disclosure
Cuppa (under the Igloo brand umbrella) has not published specific material disclosures, PFAS testing results, or supply chain transparency reports for this product line. No voluntary certifications (such as NSF, FDA migration studies, or third-party PFAS screening) are on record for this model. The 'BPA-free' marketing claim is standard in the category but addresses only one chemical; absence of PFAS disclosure is routine for consumer drinkware brands but represents a significant information gap given the widespread use of fluorinated coatings in food-contact plastics.
How it compares in its category
Travel mugs in this price and material tier (plastic double-wall, ~$15-25 retail) typically offer similar transparency levels: most make BPA claims but remain silent on PFAS and other coating chemistry. Stainless steel alternatives eliminate coating concerns entirely but are heavier and more expensive. Glass-lined options reduce plastic contact but are bulkier. Among plastic travel mugs, this product is neither leading nor lagging in disclosed safety information; it represents the industry norm of minimal chemical transparency.
If you buy it
Avoid filling with very hot liquids (above 65-70°C/150-160°F) repeatedly, as elevated temperatures can accelerate any coating degradation or leaching of applied compounds. Do not microwave or place in dishwashers on high heat cycles, which stress plastic and coatings. Hand wash with warm soapy water and air dry. Replace if the interior coating becomes visibly damaged, scratched, or discolored, as this may indicate breakdown. For daily cold or lukewarm beverages, the risk profile is substantially lower than for hot beverage use.
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.”
Interior coating leachables (unspecified chemistry)
The manufacturer has not disclosed the composition of the heat-resistant interior coating applied to this plastic mug. While PFAS is the primary concern (graded separately), other fluorinated or non-fluorinated polymeric coatings could potentially migrate into beverages, especially at elevated temperatures or with acidic/fatty contents.
BPA in plastic body
Brand explicitly markets this mug as BPA-free. Industry testing and FDA compliance for mainstream travel mugs in this category confirms BPA absence is credible; no recalls or reports of BPA in Igloo/Cuppa travel mugs are on record.
Phthalate esters (plasticizers)
Food-contact polypropylene and similar resins used in certified drinkware typically do not require phthalate plasticizers. No documented cases of phthalate leaching from Igloo or Cuppa travel mugs in consumer reports or regulatory databases.
Coating degradation over time
Double-wall plastic mugs with applied interior coatings may experience peeling, crazing, or breakdown after 1-3 years of regular hot-beverage use, particularly with repeated thermal cycling or dishwasher exposure. Once coating integrity is compromised, leaching risk increases; no long-term durability data is published by the brand.
Microplastic generation from wear
Repeated drinking (lid contact with lips), lid flexing, and coating breakdown can shed microscopic plastic and coating particles into beverages. The scale and frequency for this specific product are not quantified; risk is lower with cooler beverages and lower with proper care.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 45% 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 Insulated Drink Tumblers
Reduce
Halo Tumbler
Stainless steel and plastic lid
Lower concern tumbler; stainless steel is inherently PFAS-safe.
✓Naturally PFAS-free material
Cuppa
To Go Tumbler
Stainless steel with plastic lid
Lower concern. Standard tumbler with no known PFAS risks.
✓Naturally PFAS-free material
Klean Kanteen
Steel Pint
18/8 stainless steel, bare metal
Lower PFAS concern. Bare stainless steel container, no coatings.
✓Bare metal or glass, no coating at all
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.