Key Lime Pie Nitro is as tart and tropical as the mouth-watering dessert it’s named for. This sour ale combines the puckering brightness of real lime juice and lime peel with creamy lactose richness. The. blend of malts is enhanced by vanilla and cinnamon, providing a layer of flavor reminiscent of graham cracker crust. This velvety, citrusy sour is then finished off with the addition of nitrogen. As you watch all the tiny Nitro bubbles cascade into your glass, the pillowy head tops off your experience like a dollop of fresh whipped cream. Each sip mimics a spoonful of Key Lime Pie, and we bet you can’t have just one slice.