How to make coffee with a vacuum coffee maker
What is a vacuum coffee maker?
Vacuum coffee makers, also known as Siphon/Syphon coffee makers, have made a strong comeback in recent years. This gentle extraction method is a trendy and tasty alternative to other, better-known options. Currently considered to be the hipster’s brewing method of choice, vacuum coffee makers are back in fashion!
This original style of cafetière has two round glass chambers, positioned one above the other and separated by a filter. The filter is housed in a tube, upon which the upper chamber – sometimes called the ‘tulip’ bowl – sits.
How does a vacuum coffee maker work?
As the name suggests, vacuum coffee makers operate as syphons, working on the principle of varying pressure. Water is poured into the lower chamber, with the coffee placed above it. Next, the lower chamber is heated on top of a burner. The evaporation of the heated water creates excessive pressure (an expansion of the air) in the lower chamber. It forces the water up through the tube connecting the two vessels.
It is at this point that the heat is removed, in order to reduce the pressure to its original level. The water, by now infused with the coffee, flows back down into the lower chamber.
- Paper filter
- Coffee grinder
- Insert the filter and attach it to your coffee maker.
- Rinse the filter with hot water.
- Fill the lower chamber up to ¾ full with water (either hot or cold, as you prefer).
- Grind 15g of coffee (medium grind size) and pour it into the tulip bowl.
- Light the burner.
- After a few minutes, the water will have risen into the upper chamber. Reduce the flame on your burner and stir the mixture.
- Wait for around 40 seconds, then stir again.
- Turn off the heater. The coffee will flow back down into the lower chamber.
- You're good to go!
Watch the video of this recipe performed by Charlotte Malaval, Champion Barista of France in 2015 and 2016.
Photo credits: Belko