How to Brew Coffee with a Syphon: Step-by-Step Guide

By Hario USA | Published: 2026-10-16

Category: How-to Guides

Master syphon coffee at home with our step-by-step guide. Learn the right grind, ratio, brew time, and cleaning routine for a clean, tea-like cup.

Quick answer

To brew with a syphon, use a medium-coarse grind, a 1:15 coffee-to-water ratio, and a total brew time of 90–120 seconds once the water rises. Heat the water in the lower bowl until it climbs into the upper chamber, stir gently, then remove the heat and let the vacuum pull the coffee back down. The Technica Coffee Syphon makes this process smooth and consistent.

What you need before you start

Gather your syphon, a heat source (halogen burner or open flame), a cloth filter or metal filter, a digital scale, a timer, and a stirring paddle. Use fresh, medium-roast coffee for the clearest flavor. A burr grinder like the Coffee Mill Column gives you the consistent medium-coarse grind that syphon brewing demands.

Step 1: Set up and preheat

Fill the lower bowl with hot water—about 300g for a 20g coffee dose. Insert the filter into the upper chamber and secure it. Place the upper chamber onto the lower bowl, ensuring a snug fit. Turn on your heat source. The water will begin to rise through the filter into the upper chamber. This usually takes 2–3 minutes.

Step 2: Add coffee and stir

Once the water has fully risen and is just below a boil, add your coffee. Pour it in a circular motion to ensure even saturation. Then stir gently with a paddle—about 5–7 strokes—to break up any clumps. Avoid vigorous stirring, which can cause the coffee to splash onto the sides and not extract evenly.

Step 3: Brew and remove heat

Start your timer. Let the coffee steep for 90–120 seconds. At the 60-second mark, give it one more gentle stir. Then, remove the heat source. The vacuum will begin pulling the coffee down into the lower bowl. This should take about 30–45 seconds. If it stalls, a quick swirl of the lower bowl can help.

Step 4: Serve and clean

Once all the coffee has returned to the lower bowl, remove the upper chamber and set it aside. Pour your coffee immediately and enjoy. For cleaning, disassemble the syphon and rinse all parts with warm water. Use a mild detergent if needed, but avoid abrasive sponges. The glass and filter should be air-dried separately.

Syphon brewing steps at a glance

1. Prepare water and setup: Fill the lower bowl with hot water (about 300g for 20g coffee). Insert the filter into the upper chamber and assemble the syphon on its stand. Checkpoint: Ensure the filter is centered and the upper chamber sits snugly to prevent leaks.
2. Heat until water rises: Turn on the heat. Wait for the water to rise into the upper chamber, which takes 2–3 minutes. Keep the heat steady. Mistake to avoid: Using too high heat can cause a violent boil and uneven extraction.
3. Add coffee and stir: Add 20g of medium-coarse ground coffee. Stir gently 5–7 times to saturate all grounds. Checkpoint: All grounds should be wet; no dry clumps floating on top.
4. Brew for 90–120 seconds: Start timing once you add coffee. Stir once more at 60 seconds. Then remove the heat source. Mistake to avoid: Over-steeping leads to bitterness; under-steeping tastes sour.
5. Let vacuum draw coffee down: After removing heat, the coffee will be pulled into the lower bowl in 30–45 seconds. Swirl the lower bowl if it stalls. Checkpoint: The upper chamber should be empty of liquid before you remove it.
6. Serve and clean immediately: Remove the upper chamber, pour coffee, and rinse all parts with warm water. Avoid abrasive cleaners. Next step: Dry the filter and glass separately to prevent odors and cracks.

Key product details

"Technica" Coffee Syphon: The Technica Coffee Syphon is supported by a metal and resin stand that holds the brewer over an open flame or halogen burner. This stable stand lets you use a consistent heat source, which is crucial for controlling the rise and fall of water during brewing.
Coffee Mill Column: The Coffee Mill Column uses conical ceramic burrs that transfer less heat and shave coffee beans versus cracking them like blade grinders, providing a more consistent grind that can be adjusted and set for repeatable results. A consistent medium-coarse grind is essential for syphon brewing; ceramic burrs help you achieve that without overheating the beans.
"Electro Solo" Electric Grinder Attachment: The Electro Solo Electric Grinder Attachment is compact and rechargeable via Micro USB, and can grind 20g of coffee beans approximately 25 times on a single charge. It is currently compatible with MSG and MSS series grinders. If you own a compatible Hario grinder, this attachment lets you grind fresh coffee for your syphon without manual effort, ideal for travel or quick morning brews.