In 1870 George Garvin Brown batched barrels obtained from three distilleries to create a consistent flavor profile. To emulate that process today, the distiller also select barrels from three warehouses, each barrel originating from a different day of production, with a different entry proof and a different age profile.
The three expressions of Old Forester are then batched together and minimally filtered to craft Old Forester 1870 Original Batch.