A vacuum coffee maker brews coffee using two chambers where vapor pressure and vacuum produce coffee. This type of coffee maker is also known as vac pot, siphon or syphon coffee maker, and was invented by Loeff of Berlin in the 1830s. These devices have since been used for more than a century in many parts of the world and more recently have been given a new use by molecular mixologists and chefs to make hot cocktails and broths. Design and composition of the vacuum coffee maker varies. The chamber material is borosilicate glass, metal, or plastic, and the filter can be either a glass rod or a screen made of metal, cloth, paper, or nylon. The Napier Vacuum Machine, presented in 1840, was an early example of this technique.While vacuum coffee makers generally were excessively complex for everyday use, they were prized for producing a clear brew, and were quite popular until the middle of the twentieth century. The Bauhausinterpretation of this device can be seen in Gerhard Marcks' Sintrax coffee maker of 1925.
It may look more like a piece of chemistry equipment than a coffee maker, but we think the siphon is actually one of the most exciting pieces of manual brewing equipment out there. Believe it or not, this style of coffee maker has been around in some form since the 1830s and has recently regained popularity in many parts of the world.
By using a combination of vapour-pressure (which pushes the water into the top chamber) and a vacuum (which draws the brewed coffee back down), the siphon is able to create a uniquely clean & clear cup of coffee without any compromise on intensity.
How does it work?
In basic terms, by applying heat to the bottom chamber full of water, pressure is created which pushes the hot water into the top, at an ideal temperature for brewing. The coffee is then fully immersed in the top chamber, and when you're ready, removing the heat creates a vacuum below which quickly filters the coffee through a cloth. The vacuum pressure and cloth filtration allow you to use a finer grind, while still getting the benefit of full immersion.
For more information, check out our siphon brew guide.
Included in the box
The set comes with everything you need to make your first brew:
- Siphon (stand, bottom chamber, top chamber)
- Plastic lid which doubles as a stand for the top chamber after brewing
- Filter assembly
- Cloth filter
- Plastic scoop/stirrer
- Alcohol burner* (alcohol not included for safety reasons)
* Please note, for better control of heat application, most coffee professionals recommend purchasing a separate butane burner
Product features & specifications
- Made of heat-resistant glass
- Available in 3 Cup (~400ml) & 5 Cup (~600ml) size
- Height: ~30cm (3 Cup), ~35cm (5 Cup)
- Replacement parts available