Why Moscow Mules Are Served In The Iconic Copper Mug

The Moscow Mule, a cocktail made with vodka, ginger beer, and lime, is famously served in a copper mug, a tradition that dates back to the cocktail's inception in the 1940s. The use of copper mugs is not just for aesthetic appeal but also serves a functional purpose. Copper mugs are excellent conductors of temperature, allowing the drink to become and remain refreshingly cold. When a Moscow Mule is served in a copper mug, the metal quickly takes on the chilled temperature of the cocktail, providing an icy sensation with every sip. This enhances the drink's crispness and intensifies the flavors of the ginger beer and lime. Additionally, the copper mug gives a certain tactile pleasure, as the cold metal feels distinctively different from glass. The tradition began when the cocktail was created as a marketing strategy to promote both vodka and ginger beer in the United States, and the copper mugs were introduced as a unique selling point. Over the years, the copper mug has become synonymous with the Moscow Mule, adding to its charm and making it a popular choice for cocktail enthusiasts seeking both tradition and a refreshing drinking experience.
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The past and present of the copper mug

Before the copper mug became a legendary cocktail glass, it was merely a possession of a Russian immigrant named Sophie Berezinski. In collaboration with bar owner Jack Morgan and businessman John Martin, the Moscow mule was created in 1941 to introduce American bars to Russian vodka. What began with just a few copper mugs evolved into a fundamental element for crafting Moscow mules and their variations.

The copper mug became indispensable due to its ability to maintain the temperature of drinks. Pure copper mugs excel at keeping Moscow mules colder for extended periods. While unlined copper mugs are still available today, there are some concerns regarding their safety compared to lined versions.

Nonetheless, many restaurants and bars continue to serve Moscow mules in copper mugs, regardless of whether they are lined. Some establishments have chosen to serve Moscow mules in regular glasses instead, a practice that some devoted Moscow mule fans disapprove of. However, Julep cups or other metal containers are often accepted since they provide a similar cooling effect as copper mugs.

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