Tito's and Smirnoff, the two best-selling ... no doubt played a key role in the assumption that vodka must be made from them. Ironically, potatoes are actually one of the least efficient sources ...

The only spirit that came close to its success is now a household name: Smirnoff ... belong to the so-called ‘vodka belt’ (as opposed to the ‘wine’ and ‘beer’ belts), which means this liquor made from ...