Bests & Worsts Reviews from Amazon

I really love the way these look, and I love that their aluminum is completely recyclable pretty much anywhere, unlike pretty much any other plastic cup. But there are a number of issues that just make them undesirable. Let us first start with the fact that aluminum is a super-effective heat-transfer medium. If you're holding an iced drink in one of these, it doesn't matter how hot it is, you're going to be risking frost-bite. In the meantime, the aluminum is quickly pulling your body heat into your drink. If you try to put a hot drink in ones of these cups, you're doomed. Durability is the other problem. You never really think of a plastic cup as durable, but it is pretty undeniable that most of them when you dent a plastic cup, it pops right back out to round again. Aluminum wears a bit harder. Don't get me wrong, they're plenty-sturdy. They're not going to collapse on you any more than an aluminum can does. But they pick up dings and dents in shipping and storage so that, by the time you get to using them, they already are starting to look used. Lastly, there's one last thing that creeps me out: teeth. I don't know if there's and actual galvanic action going on, or if this is all in my imagination, but water just tastes a little ... electrical... out of these cups. Imagining chewing on foil just makes using these cups even more difficult. So, am I going to use them? Well, if I'm throwing a kegger I'm still breaking out the red solo cups. But if I'm having a couple people over for a BBQ, there's gonna be a stack of these in the cupboard along with other fancy disposables like bamboo that I'm gonna be happy to break out.