The Syphon

Not only a beautiful way to brew, syphons also produce delicious cups of coffee. Invented in the 1840s, this brew method is useful in that the brewing temperature remains relatively constant. Pour over method temperatures raise over time as the apparatus heats up and the volume of water increases. The water temperature of infusion methods like the French Press always drops. This means certain compounds, both desirable and undesirable, might be missed because of fluctuating temperatures.

Furthermore, the syphon doesn't boil the water but maintains ideal brewing temperature (90-96C). The steam pressure created by the heat pushes water up the funnel and into the brew chamber, mixing with the coffee grounds until the heat source is removed. A natural vacuum then pulls the brewed coffee back past the filter into the starting chamber. As the water doesn't boil, overly bitter compounds are less likely to be extracted, resulting in a perceivably sweeter cup.

As always, try different amounts of coffee with a medium grind.

Coffee Rambler recommends brewing between 20-25 g of coffee to 300 ml of water.

You'll need...

Syphon

Grinder

Kettle

Drip Scales

Timer

Stirrer

Coffee Grind Size Wheel from fine to coarse

Brew time | 2-3 minutes

Brew Ratio | 1:12 - 1:15

Water Temp | 90-96C

Remember these are guidelines, experimentation is encouraged.

syphon grind size
1
Boil your water & grind your Coffee

Boil your low mineral content water in a kettle to save your burner working too hard. Weigh out as much coffee as you need (23g) for the size of your brew and grind it to a medium coarseness (like granulated sugar).

 

Keep the ground coffee sealed until ready to use.

2
Set up your syphon

Ensure your syphon is set up correctly. There are many different kinds of syphon, some that look like scales and others built vertically. The syphon in the picture linking to this page is manufactured by Hario.

Check your filter is well placed, we don’t want ground coffee finding its way into your cup.

3
Fill the water (lower) chamber

Fill the chamber with 300ml of hot water and fully assemble the syphon. Turn on the burner and apply heat to the water chamber.

Be sure to pre-boil the water to speed up the process.

4
Add coffee and stir

Once the water has entered into the brewing chamber reduce the heat. Do not extinguish the flame. Here you can use a thermometer to measure the temperature, aiming for 90-96C. Add your coffee and stir.

5
Steep

Allow the coffee to steep for 80 seconds. If the coffee is clumping together, give it a gentle stir

6
Turn off the heat, pour and clean

After 80 seconds extinguish the heat and allow the coffee to filter back into the water chamber. You will see the rate at which it drains accelerate due to the syphon’s vacuum. This should take 50-60 seconds.

Clean up and make sure the filter cloth is done so carefully (to avoid rancid stains). Pour and enjoy.

An impressive but expensive syphon

Look out for the Steampunk, another vacuum brewing method. Coffee Rambler found this expensive kit to be highly adept at extracting super sweet and exciting flavours with extraordinary clarity.

Pour Over Brew Guide
French Press Brew Guide
Clever Cup Brew Guide
Chemex Brew Guide
Aeropress Brew Guide
Immersion Cold Brew Guide
Moka Pot Brew Guide