Siphon (Vacuum Pot)

The earliest patent for a vacuum coffee brewer is attributed to Loeff of Berlin in the 1830s, though the principle of using vapor pressure and vacuum to move water between chambers was explored independently across Europe. In 1838, the French inventor Marie Fanny Amelne Massot developed a commercially successful version, and by 1840 the Scottish marine engineer Robert Napier had built his own elegant variation, which earned recognition from the Institution of Mechanical Engineers in 1856.

Siphon brewers became fashionable across Europe in the mid-19th century, prized for the theatrical spectacle of water rising and falling between glass chambers as much as for the clean, aromatic cup they produced. The method eventually spread to Japan around 1920, where glassware artisans and cafe owners transformed it from a parlor curiosity into a ritualized art form.

Japan remains the spiritual home of siphon coffee today. In the kissaten — traditional Japanese coffee houses — a single barista may spend an entire career perfecting the siphon method, adjusting flame height, stir pattern, and timing cup by cup. The siphon is the only brewing method that turns preparation into performance, and Tokyo's kissaten culture elevated that performance to the level of craft.