At first I thought it tasted a little metallic, but now I don’t notice that… I drink from it all the time, fill it, and put it in the fridge and then take it with me when I go out… When I’m in the house. I’ll pour the water from the Copper bottle, into a glass, Glass, but drink out of it, when I take it in the car with me…. I haven’t really used the Copper glasses, very much, because they are quite small…..