If you’re looking for a way to keep your beer cool, especially since no one likes tepid beer, then perhaps the eCool beer cooler could be worth your consideration. We should point out that as you can see in the picture above, the eCool beer cooler is not your typically cooler. It does not use any electricity, but rather relies on a very old concept, which is keeping your beer underground. Basically what it does is that it requires you to dig a hole in the ground, deep enough to fit the cooler, and from there you just place the device in and let nature do the work. The eCool cooler will fit 24 cans and is meant to be a one time installation, so you can keep it there all year round if that’s what you want.