The $99 Ecoldbrew thermos lid grinds coffee beans, pulls water from your mug, and brews cold coffee in just five minutes.

The whole device screws onto a thermos like an ordinary lid. When unscrewed, you can see a straw-like contraption at the ...

For coffee lovers, a coffee subscription is one of the best things to spend money on. There's little better to receive in the post than a wonderful box of freshly ground coffee – especially when it's ...