The yin to Hopped Up‘s yang, have 5 beers with an IBU of 20 or less to collect this badge.
IBU stands for International Bittering Units and is simply a fancy measure of how bitter a beer is. Not every beer has its IBU recorded on untappd so if you are trying to get this badge then make sure the beer has its IBU displayed next to the ABV.
Untappd Badges 