However, this does not seem to be the case. The YETI cups are made of stainless steel 18-8 for the cup body and use polyethelene & Eastman Tritan for the cup lids, which is a chemically stable form of plastic with no known risk of leaching.
What is the secret of the Yeti cup?
It's All About A Vacuum Seal Through the use of an airtight vacuum seal. What material helps to make that vacuum seal so impenetrable? Copper. This is essentially the "secret ingredient" of the Yeti cup.
Is there aluminum in Yeti cups?
All Yeti Rambler tumblers, bottles and other insulated products are made with 18/8 stainless steel NOT aluminum. The Yeti Hondo Base camp chair is the only Yeti product made primarily with aluminum.
Are yetis aluminum or stainless steel?
All Yeti Rambler tumblers, bottles and other insulated products are made with 18/8 stainless steel NOT aluminum.
What is a YETI made out of?
polyethylene
Are yetis made from stainless steel?
Yeti Tumblers are made from stainless steel because stainless steel is strong, durable, rust resistant and safe to drink out of.