Keep in mind that most blends are not made from a single year's crops, the notable exceptions being Christmas Cheer and McCrainie's Red Ribbon and Red Flake. Most blends are made from crops grown over several years so as to diminish variations and promote consistency in taste, etc. Blends are sort of homogenized, so to speak. To do this blenders have to have a lot of component stock on hand for current and future use.