99.9% of copper mugs online have lacquer or metal inner linings (despite their claims) and even more are made of copper alloy. This mug is Pure copper!
* Before use and for cleaning: Mix vinegar and Salt at a ratio of 1:1 and use a cleaning brush to clean. Store dry to avoid oxidation. You can remove oxidation with the salt and vinegar mix as well.
1 x Pure Copper Water Mug 16oz