Here s a guide on how to adapt your coffee to water ratio when you re brewing with a chemex coffee maker.
Coffee to water ratio chemex.
Using a 17 to 1 brewing ratio 17 parts water to one part coffee a chemex will have 510 grams of water for every 30 grams of ground coffee.
This means that for each gram of coffee used between 16 and 18 grams milliliters of water are used.
Or for even math just use 500 grams of water.
This chemex ratio doesn t meant much until you understand how many grams of coffee make 1 cup of coffee.
For each cup use 8 g 1 rounded tbsp coffee and 148 g 5 oz water.
At 45 start the second pour making sure to reintegrate the coffee and water.
We recommend starting with a 1 15 coffee to water ratio when brewing with the chemex.
This step is called the bloom.
For other chemex sizes simply apply the same ratios as we have here.
Start your timer and slowly pour just enough water over the grounds to wet them evenly about 70 grams.
Also called infusion brewing this is the method you get with auto drip machines as well as manual pour over brewers like the chemex.
The specialty coffee association of america the scaa has published a golden ratio of 55 grams plus or minus 10 depending on the type of coffee and the roast of coffee per liter of water.
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.
This is all really nice but what is right for the chemex.
Pour with a wiggling motion then a gentle spiral until the volume reaches about a fingertip down from the top of the rim or 450g of water.
Experiment from there to find the perfect ratio for you.
The amount of coffee and water varies depending on the type of coffee you are brewing and your preferred strength.
For 1 cup coffee use 20 grams of coffee beans about 3 tablespoons and 300 grams water.
It is an efficient way to brew coffee because there is a constant supply of fresh water running through the coffee.
Once you know you have the correct amount of coffee and water you can focus in on perfecting your grind.
As a starting point we recommend using 50 grams of coffee and 700 grams of water about 25 ounces and then adjust according to your taste.
General ratios range from 1 16 to 1 18.
The golden ratio for the chemex depends on the specific characteristics of the device.
In other words for every 1 gram of coffee add 15 grams of water which converts to about 3 tablespoon of coffee for every 1 cup of water.
1 cup of chemex coffee.
In general the coffee to water ratio used when brewing should be between 1 16 and 1 18.
Step 1 heat your water to about 200 93.
Pour over the dark spots and avoid the light ones.
Let it sit until your timer reads 45 seconds.
Weigh out the coffee and grind to a coarseness resembling sea salt.