Copper is a very good conductor of heat, so if you put a cold drink in it, the entire mug will instantly become cold.
This product is especially suitable for drinking iced coffee.
*The SN series has tin plating on the inside, which makes the beer foam creamy.
Please refrain from hot drinks as they can cause burns.
If you want to enjoy the color change of copper over time, please choose a mirror finish, and if you are concerned about discoloration, choose a purple finish or a tin finish.