To brew the world’s most expensive cup of coffee, upgrade that Keurig
No, they don't come in a K-Cup. (Jonathon Kambouris/)Klatch Coffee’s Elida Geisha Natural 1029 is grown on a reserve near the Barú volcano in Panama, where the cold air causes trees to grow two to three times more slowly, limiting harvests. You pay $100 for 18 grams, enough to brew an 8-ounce cup of fruity goodness.The Baratza Virtuoso+ produces grounds in a better shape than cheap grinders. (Jonathon Kambouris/)Cheap, blade-based machines chop your beans into inconsistent chunks, but the Baratza Virtuoso+ uses two carbon-steel burrs to crush them into a uniform powder, while extracting more oil for enhanced flavor. Choose from 40 levels of coarseness to match your brew.The Six-cup Classic Chemex can help make even your average daily cup taste better. (Jonathon Kambouris/)The key to the Six-Cup Classic Chemex is its beaker-riffed design. Pour the water (heated to 204 degrees Fahrenheit) over your precious grounds, then watch them...