How to Brew: Chemex

How to Brew: Chemex

Mar 01, 2024Julie Luster

A renowned coffee maker celebrated for its enduring design since its inception in 1941, the Chemex combines functionality with aesthetic appeal. Easy on both the eyes and the brewing process, the Chemex remains a timeless favorite.

The Chemex Filters are the true magic behind the Chemex. Other pour over methods may allow air in between the cone and the filter, but these thick and sturdy pieces of paper will stick tightly to the Chemex cone wall, forcing a longer extraction and more balanced cup.

Equipment You'll Need

Brewing Details

  • Chemex 6-cup brewer
  • Square Chemex filter
  • 36 grams (5-7 tbsp) Craft Coffee beans
  • 600 mL water, plus additional for rinsing
  • Pouring Kettle (gooseneck preferred)
  • Timer
  • Drinking Mug
  • Burr grinder (recommended)
  • Scale (recommended)
  • 1 : 15 Coffee to Water Ratio
  • 205° Water Temperature
  • 3:30 minutes Brew Time
  • Medium-Fine (Sea Salt) Grind



Step 1

Heat your water to 205 degrees by bringing it to a boil and letting it sit for 30 seconds.

chemex filter placement

Step 2

Unfold and place the Chemex Filter in the brewer with single fold away from the spout and multiple folds lined up against the spout. 

Step 3

Pour hot water around the inside of the filter for about 5 seconds. Keeping the filter in place, discard the rinse water and fold the filter toward the spout to reinforce this area. Rinsing the filter helps seal it inside the dripper and also gets rid of any papery taste.

Pour coffee grounds into chemex

Step 4

If using pre-ground coffee skip to Step 5. Otherwise, weigh out your whole bean coffee and grind it on a setting slightly coarser than medium. 

Step 5

Pour your ground coffee into the filter and gently shake the brewer back and forth to settle the grounds.



pour over chemex

Step 6

Start your timer and slowly pour just enough water over the grounds to wet them evenly (about 70 grams). Let it sit until your timer reads 45 seconds. This step is called the bloom. Hot water forces the coffee to release trapped gases, leading to expansion of the coffee bed, bubbling at the surface, and wonderful aromas for you to enjoy.

Step 7

Begin pouring continuously in a spiraling pattern. Try to avoid pouring directly in the center or around the edges of the filter. If the water level nears the rim of the Chemex, pause for a moment to let it drain before continuing. Stop pouring once your timer reads 2:45 or your scale reads 600 grams.

chemex coffee

Step 8

Allow all the water to drain through the filter. Remove the filter from the dripper and discard the grounds. If your final time was longer than 4:00, your grind was probably too fine. If your final time was shorter than 3:00, your grind was probably too coarse. Make a small adjustment to the grind next time you brew - practice makes perfect!

More articles