Another great New Belgium Lips of Faith brew, Vrienden is a collabeeration brew between New Belgium and Allagash. This nicely soured brew has notes of Brettanomyces in the aroma and nice sour flavors thanks to Lactobacillus.  A bit of time in the cellar will likely do this beer well but managing not to drinking it rather than let it sit is a bit of an issue.  Allagash also released their version of this beer, although it’s mostly available on draft with just a small number of bottles available at the brewery store only.