So, what do you do when you want coffee and don't have a Chemex handy? You grab a canning funnel, a cloth Chemex filter here, and a thermal carafe. So good. So simple. I just saved you $50 on a Chemex, or $120 on the Keurig 2.0. Ok. Not as visually appealing as a Chemex, I admit. The coffee does stay hot for hours! Especially if you preheat the carafe.
No carafe? A Mason jar works! Put a cozy on it and then the lid to keep the heat in.
I can see the Mason jar coffee maker on a road trip. I know I won't be traveling with my Chemex. No more crappy hotel room coffee (you're good as long as you have a way to make hot water). Pack all your supplies inside the jar and you're good to go!
I admit that a quart of coffee only fills my husband's monster cup and my measly 10 oz cup so I don't need to worry about keeping it hot unless I'm home alone.
Good coffee does NOT require any fancy equipment. People all over the world make coffee with much less.