Punch Club Whiskey Sour 20L KeyKeg. Mixologist-level Whiskey Sour with rye whiskey infused with cherries. Use a shaker to create the cream on top. Punch Club is a Estonian company which loves to put together science and the latest trends in mixology. Through thousands of trilas and errors they have learned the skill of capturing virtually any flavour out there. They believe in the magic of artisan cocktails, but they also believe in efficiency and sustainability.