Grand Cru started out as The Sultan. When we made this beer last year I filled 8 old Pinot Noir barrels and more or less forgot about it. The native bugs in the barrels kept fermenting the beer, making it slightly sour. To further enhance the funky character, I blended it with 2 barrels of a Flanders Red kinda thing, that has also been fermenting funky for about 18 months.