YETI Rambler vs. Insulated Travel Mug
Ten pieces of ice, plus water, were added to these cups at 7 AM. The cups were kept in our store, about 75 degrees, with lids on. The insulated cup was completely melted by 12 PM, but the YETI Rambler still had about 10-15% of its ice at 4 PM.
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YETI Rambler vs. Tervis Water Bottle
Twelve pieces of ice, plus water, were added to these cups at 7 AM. The Tervis held ice much better than the insulated mug in the previous trial, but had completely melted by 1 PM. The YETI not only kept the ice for the whole work day, but also had one tiny piece of ice at 6 PM after sitting in my hot car for 1.5 hrs! That's keeping ice for 11 hours, plus exposure to extreme heat!
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