Burčák season officially kicks off on August 15th and is sold through November 30th (though a few of Prague´s shadier establishments suspiciously advertise burčák in July). It´s creation coincides with the grape harvest, giving it a short shelf-life. For the unitiated, burčák is the highly drinkable grape juice that separates from the crop as it´s pressed. Purists insist that the real deal is only that liquid which is enjoyed fresh off the presses for a couple of precious hours when the sugar and alcohol reach a state of perfect harmony.