Review on Copper Stemless Wine Cups Set of 4 - 17oz Solid Hammered Copper Wine Glasses - Ideal Gift Set for Men and Women - Perfect Copper Tumblers for Red/White Wine and Moscow Mules. by Christine Zuniga

Bought these copper glasses for everyday drinking. We have not used them for anything other than drinking water. And every time they were hand washed with cold water. These glasses didn't even last 2 months of use and we were starting to see a black layer on the top changing the taste of the water. And they are no longer usable. Other facts, we have a commercial water softener at home. We are disappointed and will not recommend this product. The whole idea of using copper jars was geared towards the health benefits of copper, but they didn't pass the test!