Designed and Crafted in Italy Shapes Allow the Beer to Flow Slowly into the Mouth while Maintaining the Foam at an Adequate Level when Drinking Foam Control System at the Base; A Laser Etched Circle Helps Maintain a Stream of bubbles Replenishing the Head and Releasing the Aromas Bowl Shape Curved Specifically for Each Style of Beer Lead Free Crystal Glass; Dishwasher safe 25 Year Guarantee against any chipping on the rim or foot as well as any discoloration due to automatic dishwashing. The Birrateque Collection has been developed in collaboration with Centro Study Assaggiatori, the International Specialists of Sensory Analysis for food and beverage. Every Beer Style has unique organoleptic characteristics and for this reason each specific Beer Style should be served in the appropriate glass so that these features will be emphasized. The Birrateque IPA/White IPA glass is designed with a thinner body to bring out the hops and citrusy aromas all while keeping the carbonation. The shapes and dimensions of the glasses have been designed to distribute the beer more evenly across the mouth allowing the beer to flow slowly while avoiding the transfer of heat from hand to beer. The Foam Control System, a laser etching at the base, ensures that a small stream of fine bubbles are continuously released. The glasses in the Birrateque Collection are made in Italy from Luigi Bormio's proprietary lead-free, high-tech glassware formula and carry a 25 Year Guarantee against any chipping on the rim or foot as well as any discoloration due to automatic dishwashing.