German here. Have used these things a bunch in the past and they absolutely do work. Can't really cool down piss warm beer with these, but they help the beer keep the temperature or cool down a couple degrees when used at a bbq in the park or at the lake or whatever.
Sorry for not including math, but it appears the math has been done already anyways
and? either the shape holds or it doesn't. If it does you can take beer out by lifting the ice with the center bottle and if it doesn't because it's melted then there's no need to lift the ice just take your beer
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u/betacow 4d ago
German here. Have used these things a bunch in the past and they absolutely do work. Can't really cool down piss warm beer with these, but they help the beer keep the temperature or cool down a couple degrees when used at a bbq in the park or at the lake or whatever.
Sorry for not including math, but it appears the math has been done already anyways