I never had a Yeti, but I can brew a pot of coffee and dump 20 oz in my Ozark Trail mug and it will be nearly 4 hours before it cools off enough to drink. The first test was a cold beer in the mug. I put the lid on it and drank a six pack, then drank the one in the mug and it was as cold as the six that came straight out of the fridge. I'll stop at Walmart in the morning and see if they have any left for a spare.
Bill

You do not have to have had a psychotic episode to work here, it just saves time!