If a Moscow Mule is your drink of choice you may want to re-think that.
A Moscow Mule is made with vodka, ginger beer, and lime juice and served in a copper mug.
In 2017 the Iowa Alcoholic Beverages Division issued an advisory. They said that copper mugs should not be used for drinks with a pH level below 6.0. A Moscow Mule is well below a 6.0.
The reason for the advisory is the acidity of the ingredients in the drink can cause the copper to leach into the drink. Digesting high concentrations of copper is poisonous.
Source: https://globalnews.ca/news/4956798/your-moscow-mule-might-look-nice-but-its-copper-mug-can-seriously-harm-you/
