West Loop 2.0 Leak-Proof Spill-Proof Insulated Travel Mug vs Rambler Tumbler YETI: which is safer?

Where these two actually differ

• We flag PFAS in leak-proof coating (covered separately), Silicone gasket degradation and leaching, Mold and bacterial growth in insulation cavity and Coating wear and microparticle shedding on the Contigo and not on the Yeti.
• We flag Nickel leaching from stainless steel on the Yeti and not on the Contigo.
• The Contigo is Stainless steel with unspecified waterproof/leak-proof coating where the Yeti is 18/8 stainless steel, no coating, which is most of the difference in these two grades.
• The gap is 60 points, wide enough that this is not a close call, and the Yeti is the one to buy.
• We are less certain about the Contigo grade, at 45% confidence against 82%, because it discloses less.