HopfenHöhle Beer Cooler is an outdoor hidden beer cooler that simply works by good old soil-cooling system. This is possible due to lower temperatures in the ground which chill your beer to drinking temperature. Best of all: It works without any electricity! All you have to do is: Dig a hole of about 40 inches (or just take it easy using an auger drill), insert the cladding tube and fill-in your favorite kind of beer.
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