Brew method
Vacuum coffee maker
A vacuum coffee maker brews coffee using two chambers where vapor pressure and gravity produce coffee.
About
A vacuum coffee maker brews coffee using two chambers where vapor pressure and gravity produce coffee. This type of coffee maker is also known as vac pot, siphon or syphon coffee maker, and was invented by Johann Nörrenberg in 1827.
Text from the Wikipedia article Vacuum coffee maker by its contributors, under CC BY-SA 4.0.