“Most “portable” coffeemakers aren’t actually all that convenient, so you’d be just as fine dragging the Chemex out with you. The Oomph, though, is an all-in-one (yes, all, it’s even its own mug) that actually delivers.
It uses an internal plunger and filter—something like a French press—and makes consistently good coffee with minimal fuss. Once you figure out your golden ratio, you’ll want to use it for your morning commute, too.”