It's amazing how quickly a cup of coffee can go from "elixir of life, savior of mornings" to "undrinkable tepid swill." But that's exactly what happens if you step away from your mug for just a ...

meaning this isn’t a mug I would casually throw in my bag. But it’s very nice for taking on walks or bringing coffee-shop brew home. I was initially nervous the glass would be delicate ...