I love this invention. Imagine put one in your back yard and the next time you are holding a party, you can take out your beer like a magic. But I think compar

I love this invention. Imagine put one in your back yard and the next time you are holding a party, you can take out your beer like a magic. But I think compared with the CO2 that comes out from your beer, the CO2 release reduced by saving electricity isn't that much...