The AeroPress Original uses a combination of immersion and pressure to brew coffee in roughly 60–90 seconds, producing a concentrated, low-acidity cup that sits somewhere between espresso and filter — a category it essentially invented for itself. A rubber plunger forces hot water through a paper or metal micro-filter and a bed of medium-fine grounds, extracting aggressively but forgivingly: grind size, water temperature, steep time, and pressure can all be dialed independently, making it one of the most variable-yet-repeatable brewers available. It was designed in 2005 by Alan Adler, an engineer best known for the Aerobie flying disc, which explains both its obsessive focus on physics and its complete indifference to coffee tradition. The chamber, plunger, and filter cap disassemble in seconds and fit inside a jacket pocket, making it the preferred travel brewer of specialty coffee professionals who refuse to drink bad hotel coffee. There is an annual World AeroPress Championship with hundreds of national qualifying events, which tells you everything about the kind of quiet, competitive fanaticism this €40 piece of plastic inspires.
