Product Description Product Features Food-safe lacquer resists tarnishing Not microwave or dishwasher safe Seamless hygienic interior Unlike many other copper items on Amazon, our shot glasses/jiggers are constructed of 100% Pure Copper. There is NO stainless steel or nickel lining. The copper shot glass enhances the flavor and keeps the shot colder. Support Your questions will be answered within 24 Hrs Guaranteed Quality We guarantee our quality and if the shot glass comes with any damage, we will replace it Copper Care Instructions After each use, clean with warm water and soft soap. No hard chemicals or detergents. Dry the copper shot glass with a soft cloth. Do not leave liquid in the shot glass overnight to avoid stains Not dishwasher safe Do not use in microwave Do not use with hot beverages Moscow Mule Recipe Fill your copper mug with ice Pour in 1.5 - 2 oz of vodka Fill with 4 - 6 oz of cold ginger beer Squeeze lime juice into mug Garnish with a wedge of lime