The mug is a historic part of the Moscow Mule experience!u003cbr/u003eFirstly, copper's excellent thermal conductivity quickly chills the drink, ensuring it stays refreshingly cold.u003cbr/u003eVisually, it adds an elegant and eye-catching element to the presentation of your mule.u003cbr/u003eWhile notu003cemu003e necessaryu003c/emu003e, the copper mug contributes to the overall enjoyment and aesthetic of sipping on a Moscow Mule.