Mira Insulated Water Bottles 17 Oz. Lot Of 3. Pink. 24hr Cold, 12hr Hot.
Lower concern. Stainless steel interior with no coating on record.
This Mira bottle has a stainless steel interior and double-wall insulated construction with no water-repellent finish on record. Stainless steel is not a material linked to PFAS. The brand has no PFAS statement on record.
We flunk more products than we pass. This one earned its grade. How we grade
Material
Stainless steel interior, double-wall insulated construction
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
What Mira Insulated Water Bottles 17 Oz. Lot is made of, ingredients and materials
Mira's 17 oz bottles use food-grade stainless steel as the interior and exterior surfaces, with a vacuum-sealed air gap between walls for insulation. Stainless steel does not leach metals under normal use because its oxide layer resists corrosion from water and most beverages. Unlike ceramic-lined or polymer-coated alternatives, this material avoids glaze contaminants, epoxy resins, or coating breakdown over time.
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.
Polymer cap or closure off-gassing
Most insulated bottles include plastic lids or silicone gaskets. While materials are typically food-safe, heating the cap above 160F repeatedly may release volatile compounds; this is not specific to Mira and is common across the category. Avoid prolonged contact of boiling liquid with plastic closures.
Microbial growth from improper cleaning
Vacuum-sealed double-wall construction can trap moisture or residue in crevices if not cleaned thoroughly. This is a usage issue, not a material defect, and applies to all insulated bottles. Regular hand washing with a thin brush prevents biofilm accumulation.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Coating degradation or interior degradation over time
Stainless steel does not degrade into harmful substances under normal beverage storage. No documented cases of interior rust, leaching, or coating failure in Mira bottles exist in public records.
Heavy metals
Food-grade stainless steel used in drinkware is required to meet FDA standards that limit nickel leaching and other metals. No recalls or contamination reports exist for Mira bottles. Standard grades (304 or 316) are not a material linked to PFAS for water and beverage contact.
Source, FDA ↗Glue or adhesive off-gassing between walls
Mira's double-wall construction typically uses compression sealing or welding rather than adhesives, limiting VOC exposure. If adhesive is used, it is minimal and not documented as a safety issue for this brand or product type.
The full breakdown
The brand's record and disclosure
Mira has not published detailed material certifications or third-party testing results in publicly available sources. The brand maintains no documented safety controversies, product recalls, or health claims related to these bottles. Absence of disclosure is not unusual for mid-tier insulated bottle brands but limits independent verification of supply-chain material purity.
How it compares in its category
Stainless steel insulated bottles show lower concern in the drinkware category because they eliminate most chemical leaching pathways present in plastic liners, ceramic glazes, or coated aluminum. Mira's design is standard for the insulated bottle market and carries no known elevated risk compared to competitors like Hydro Flask or S'well. Price point suggests no exotic coatings or proprietary interior treatments that might introduce novel hazards.
If you buy it
Rinse thoroughly before first use to remove any manufacturing residue. Avoid filling with very hot water above 160F if the cap or lid contains plastic seals, as some polymer closures can off-gas at extreme temperatures; standard hot beverages pose no problem. Hand wash the interior periodically with a bottle brush to prevent mineral buildup or odor retention. Replace the bottle only if the vacuum seal fails (visible moisture between walls) or if the interior develops rust, neither of which is typical for stainless steel at this price point within typical use.
What we don’t know
- Basis
- Model estimate, 75% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Mira has made none
Formulations change between production runs, so check the current label. How we grade.
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More portable water bottles 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.