How effective are beer cozies?

Rice Krispie Cozy

The folks at tested everything from donuts and legos to the traditional foam cozy.

    “Conclusions: All of our food-based can cozies worked to some degree, but the Rice Krispies Treat cozy stole the show. We theorize that its superior insulating ability probably comes from the thickness of the material combined with the Styrofoam-like quality of the Rice Krispies Treats. And as gratifying as it would have been to see a successful synergy between beer and donuts, the bagels were slightly better insulators, perhaps because they are denser than the raised glazed pastries.”

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