Here's what I'd actually pack. First, a hand grinder. It's the single biggest upgrade for travel coffee. Second, a digital scale that fits in your palm—they're cheap and save you from guessing. Third, a thermometer if you're at altitude or in a cold car; you want water between 195°F and 205°F.

As for the press itself, look for one with a double-wall vacuum. It keeps heat in, which matters when you're brewing in a drafty hotel room or a chilly campsite. The brand matters less than the insulation.

One more thing: a stirring stick. Some presses come with one, but if yours doesn't, a chopstick or a plastic spoon works. You'll want to stir the grounds after the initial pour to make sure they're all wet—that's a step people skip, and it leads to uneven extraction and weak spots.