Bests & Worsts Reviews from Amazon

It’s pretty solid and feels well built and tough. If you are drinking one beer after another, then yes of course the beer will stay cold. I mean it will stay cold in my hand too. So I put it to the test (with and without the insert being frozen). Not frozen: The beer got warm after 30 minutes as the beer tried to cool the insert (but who babysits their beer, really) Frozen: I placed the frozen insert along with a cold beer from the fridge right before I left to work at 7am. During my lunch hour both the Hopsulator and the beer were still cold. You could actually feel the coldness on the actual outside of the Hopsulator. When I got home at 5pm the beer was chilled, it wasn’t super cold like around lunch time but it wasn't hot either. I opened it and it passed, it was chilled drinkable 👍🏼 Recommendation: make sure the insert is frozen.