brewing guide

Equal parts brilliance and common sense

The Chemex remains a staple in every coffee enthusiast’s arsenal and its design has endured, unchanged (wood handle, leather cord, tapered glass and all), since its invention in 1941 — a true testament to its genius! Here’s our Chemex brewing guide for a smooth flavorful coffee.

With the Chemex method it’s more important to wet your filter than with any other brewing device. This is because the way the filter sticks to the sides of the Chemex to regulate airflow is paramount to its design.

If you’ve thoroughly wetted the filter, you should be able to pour the water through the spout without the Chemex filter falling out.

Base Specs

Coffee: 30g
Grind: Medium fine
Water: 500g
Water Temp: 185°F / 85°C
Brew ratio: Approx. 1:16
Brewing time: 3mins 45secs


Chemex 6 cup coffee-maker
Chemex micro-filter
Burr grinder
Gooseneck Kettle
Digital kitchen scale

Step 01.

Pour the water into your kettle and bring to the boil. Set aside to let cool.

Step 02.

While the water heats, grind your coffee to medium-fine and set aside. Place the filter into the Chemex and set it onto the the scale. Now zero your scale.

Step 03.

Take your water and thoroughly wet the filter (about 50g of water should do it). Discard the water and set the Chemex on the scale again and add your grounds. Gently shake the Chemex to level the bed and zero your scale again.

Step 04.

To bloom your coffee, start the timer and very slowly pour 70g of water evenly, in concentric circles, making sure to thoroughly wet all your grounds. This should take at least 20 seconds. Stop when your timer reads 0:45.

Step 05.

Slowly keep adding water to the bed, starting from the center and working outward in a small circular spiral until the scale reads 200g. Here you wont be pouring as slowly as you did for the bloom!

When you reach the edge, take 2 laps around, taking care not to hit the sides. Now, start pouring in the same circular motion towards the center of the bed until the scale reads 400g. Your timer should read 2:00.

Step 06.

Take another quick lap around the edge and continue pouring towards the center in circles until your scale finally reads 500g and the timer reads 2:30.

Step 07.

Let gravity do its work and draw the water through the grounds into the bottom of the Chemex. This should take about 75 seconds and your timer should now read 3:45.

Remove and discard the filter. Why not go green and add the grounds to plant soil.

Step 08. Sit back, pour and relax

Pour your coffee into preheated cups and enjoy!