Inspired by a Youtube video and supported by our French friends, we decided to test the “eco-cooler” — supposedly efficient (5*C drop in air temperature) non-electric cooling system.
See the promo video first:
Well, looks really suggestive, huh?
So, we got some tools, a slab of plexiglass and two trashbags of empty bottles. And off we went! Continue reading Cool Air from a bottle? Test results.