For 1 cup coffee use 20 grams of coffee beans about 3 tablespoons and 300 grams water.
Chemex coffee to water ratio.
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.
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.
Once you know you have the correct amount of coffee and water you can focus in on perfecting your grind.
And lastly make adjustments.
In general the coffee to water ratio used when brewing should be between 1 16 and 1 18.
Hot water just off the boil about 205 f scale.
42g 6 tablespoons of coffee.
Start your timer and slowly pour just enough water over the grounds to wet them evenly about 70 grams.
Weigh out the coffee and grind to a coarseness resembling sea salt.
Or you can always just use the calculator above.
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.
This step is called the bloom.
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.
34 x 15 510 3 to 4 cups of chemex.
In other words for the chemex we use 42 grams of coffee and about 700 grams of water.
Coffee ratio should be 25 grams per 12 oz.
1 cup of chemex coffee.
For example if you want to brew 1 liter at a 1 16 ratio you would divide 1000 that s how many grams of water you want by 16.
Here are a few more things to keep in mind.
If your coffee tastes weak or sour you should adjust your grind to make it finer.
Here s a guide on how to adapt your coffee to water ratio when you re brewing with a chemex coffee maker.
This means that for each gram of coffee used between 16 and 18 grams milliliters of water are used.
Let it sit until your timer reads 45 seconds.
Bring water to boil then let rest 30 seconds.
That s 62 5 grams of coffee for 1000 grams of water a 1 to 16 ratio.
The amount of coffee and water varies depending on the type of coffee you are brewing and your preferred strength.
A digital scale will help with dosage consistency.
We recommend starting with a 1 15 coffee to water ratio when brewing with the chemex.
2 cups of chemex coffee.
As a general rule we suggest about a 1 17 coffee to water weight ratio.
That would give you 62 5.
Or for even math just use 500 grams of water.
For 2 cups coffee use 34 grams coffee beans and 510 grams water.
Cup into the filter cone.