Microplastics have been found in human blood, breast milk, and newborn lungs. We are doing something about it.See the research →
Plastic-Free Rating
Food & Drink
Mainstream Brand
Food & Drink·YETI

Rambler 14 oz Mug

A
PFR Grade
Excellent — minimal plastic, transparent materials, safe for daily use
18/8 stainless steel. No BPA, no BPS, no phthalates, no PFAS. Double-wall vacuum insulated. YETI is one of the most popular premium drinkware brands.
PFR Approved

14 oz stainless steel mug. 18/8 stainless steel. No BPA, no BPS, no phthalates, no PFAS. Double-wall vacuum insulated.

Score Breakdown

How scores are calculated

Materials (40%): How plastic-free the product is — raw materials, construction, and coatings.

Packaging (20%): Is the product packaged in plastic? Is it recyclable?

Transparency (20%): Does the brand disclose ingredients, sourcing, and manufacturing?

Durability (20%): How long does it last? Longer-lasting products reduce plastic waste over time.

Materials
10
Packaging
8
Transparency
8
Durability
10

This is a rating of this specific product only — not the company. Other products from this brand may score differently.

Last updated: April 6, 2026

Share:X / TwitterFacebook
Low Exposure Risk — Why This Product Category Matters

Food packaging is one of the most direct routes of plastic chemical exposure. BPA, BPS, phthalates, and PFAS migrate from packaging into food — especially with heat, acidity, or fat content.

Synthetic Plastic Content
5%
synthetic plastic by weight

Why We Rated It This Way

YETI's Rambler mug is completely inert — no chemical leaching, no microplastics. Safe for hot and cold beverages. One of the most popular premium drinkware brands in the US.

Was this rating helpful?

Stay Informed

Get New Ratings in Your Inbox

We add new product ratings weekly. No spam — just science-backed ratings to help you reduce your plastic exposure.