From Jester King: "Grim Harvest is our farmhouse ale refermented with the “spent” blackberries from Jester King Nocturn Chrysalis. Several years ago, we noticed that the refermented fruit from our beer still had a lot of character left in it. So we decided to do a second refermentation of the fruit to draw out more of that character. The inspiration for this technique also came from reading that Cantillon had once done this. The result was beers like La Vie en Rose (raspberries) and Detritivore (cherries). We have now completed this technique with blackberries for Grim Harvest. Although, to be precise, a few years ago beer from a second refermentation of blackberries made its way into Synthesis Analogous."