I knew I’d heard of this before. Here’s a review I found when I got curious about how it works vs. how the bags coffee comes in works, and discovered it’s really just a bunch of voodoo and mumbo jumbo. A lot of their claims don’t even make sense: http://www.frcndigital.com/coffee/friis.html
I knew I’d heard of this before. Here’s a review I found when I got curious about how it works vs. how the bags…