In doing some research for my Northern Ontario trip, I came across the following awesomeness:
- Beer can cozies, put to the test! The main takeaway:
“Depending on their material, beer can cozies can be effective in keeping beer cool even in extremely hot weather. The two cozies that performed the best employed a layer of dense foam about half an inch thick, which prevents heat transferring into the cans and the beer by limiting convection and conduction. A cheap beer cozy can be just as effective as a more expensive cozy, provided you get the right type. On the other hand, an ineffective can cozy, while it may improve your grip on the can or keep your hand dry, will not do much to keep your beer cold.”
I am truly glad to have this knowledge! My future beer-cozy buying is forever improved because of this.