A siphon coffee maker works by using heat, vapor pressure, and vacuum to move water between two chambers, brew the coffee by full immersion, and then draw the finished coffee back through a filter into the lower vessel.

A siphon coffee maker, also known as a vacuum coffee maker, brews coffee using a combination of heat, vapor pressure, and vacuum suction. Unlike drip coffee machines that rely mainly on gravity, a siphon system moves water between two chambers using changes in pressure created by heating and cooling.