Why not use copper mugs for Moscow mules?
As an expert sommelier and brewer, I have had personal experiences and encounters with various types of drinkware. Copper mugs have gained popularity in recent years, particularly for serving Moscow mules, a refreshing cocktail made with vodka, ginger beer, and lime juice. However, there have been concerns raised about the safety of using copper mugs for acidic beverages like Moscow mules. Let's delve into the reasons why copper mugs may not be the best choice for this cocktail.
1. Reactivity of copper with acidic foods:
Copper is a highly reactive metal, especially when it comes into contact with acidic substances. Moscow mules typically contain lime juice, which has a pH of around 2.0, or ginger beer with a pH of approximately 3.0. These acidic components can cause a reaction with the copper lining of the mug, resulting in the leaching of copper into the beverage. This can be a cause for concern as excessive consumption of copper can lead to health issues.
2. Potential health risks:
Although copper is an essential mineral required by our bodies in small amounts, excessive intake can have adverse effects. High levels of copper in the body can lead to gastrointestinal issues, liver damage, and even copper toxicity. While the amount of copper leached into a Moscow mule may not be significant, repeated exposure over time could potentially contribute to an increased copper intake. It is important to consider this potential risk, especially for those with existing health conditions or sensitivities to copper.
3. Safety regulations and pH levels:
In the United States, the Food and Drug Administration (FDA) has set limits for the amount of copper that can be present in food and beverages. The safe cutoff point for copper concentration is generally considered to be a pH level of 6.0 or above. However, Moscow mules, as well as other acidic beverages like wine, fruit juice, and vinegar, all have a pH below this threshold. Therefore, it is advisable to avoid using copper mugs for these drinks to minimize the risk of copper leaching.
4. Alternative options:
If you still desire the traditional presentation of a Moscow mule in a copper mug, there are alternatives available. Many manufacturers now offer copper mugs with a food-safe lining, such as stainless steel or nickel. These linings act as a barrier between the acidic drink and the copper, reducing the risk of copper leaching. Additionally, using glass or ceramic mugs is another safe option for serving Moscow mules without any concerns about copper reactivity.
While the use of copper mugs for Moscow mules may provide an aesthetic appeal and enhance the drinking experience, it is essential to consider the potential risks associated with copper leaching into acidic beverages. The reactivity of copper with low pH levels, the potential health risks of excessive copper intake, and safety regulations regarding copper concentration all point towards avoiding the use of copper mugs for Moscow mules. However, if you still wish to use copper mugs, opt for ones with a food-safe lining or explore alternative drinkware options to ensure a safe and enjoyable cocktail experience.