Grind size: Medium-Coarse
Coffee to water ratio: 1g coffee to 16g water
Water temp: 200 °F
Brew Time: Approx. 5 minutes
Gear required: Chemex coffee maker, Chemex bonded paper filters, coffee grinder, scale, gooseneck kettle
Select your favourite whole bean coffee and grind it to a medium-coarse grind.
Open a Chemex bonded paper filter into a funnel so that one side of the cone has three layers and place it into the top of the Chemex brewer. The thick-three layer portion should be facing the pouring spout. Dampen the filter with hot water to rinse and preheat the brewer. Once the water has drained through the filter completely, pour it out of the brewer while keeping the filter sealed against the coffeemaker wall.
Add to the filter one gram of coffee for every sixteen grams of water. For example—if you’re using 25g of coffee you would yield 400g of brewed coffee. Place the Chemex with filter and ground coffee on your scale and tare the scale to weigh the amount of water as you’ve calculated.
Watch it bloom! After your water boils, remove from the heat and wait till the water settles from boiling (optimal water temp is 200 °F). Then add enough water to wet the grounds and wait 30 seconds for the bloom which releases the most desirable coffee elements from the grounds.
After the grounds bloom, slowly pour the brewing water in a circular motion over the grounds while keeping the water level below the top of the filter. Allow the water to drain before adding more water—again, in a slow, circular motion to ensure an even soaking of the grounds. From start of bloom to finish should take between 2.5 to 3.5 minutes.
Once finished brewing, lift the filter with spent grounds out of the brewer and discard.
Enjoy your freshly brewed cup of coffee! A carefully handled and well-cleaned Chemex brewer should give you a lifetime of service. Remove the wooden handle and hand wash with warm soap and water periodically or place the coffeemaker securely in the dishwasher.