1 Liter (or approximately 32 fluid ounces)
Buy some fresh, locally roasted coffee beans.
Setup your Chemex with the thickest side of the filter cone facing the spout and find a timer to track your total brew time.
Measure out 60 grams of whole bean coffee. No gram scale? Equivalent measurements are 0.13 pounds or 2.11 ounces. If you don't have a scale, you can use tablespoons. Each tablespoon equals 5 grams of whole bean coffee. So if you are using the tablespoon measurement, use 12 scoops.
Grind the coffee at a coarse setting, a little finer than French Press setting. We prefer to use burr grinders, Baratza grinders or Hario ceramic mill grinders at home.
Using a stovetop or electric kettle, boil at least 32 ounces of filtered water. Pour this water through Chemex filter and Chemex to rinse the filter and preheat the Chemex. Dump the rinse water. Then get 32 ounces of filtered water ready for brewing with your kettle.
Pour ground coffee into wet filter, settle the grounds evenly.
Filtered brewing water should be at 200-205 degrees Fahrenheit for optimal brewing.
Quickly wet the surface of the coffee grounds to completely saturate and preinfuse the coffee with about 2 ounces of water. At the same time, start a timer to track your total brew time.
Allow the water to saturate coffee grounds for 30 seconds.
Then begin pouring slowly into the center of the grounds and evenly pour on top of the coffee bed as it expands. Avoid pouring water at the edge where the filter and coffee grounds meet.
Continue pouring at a steady, even pace until the remaining 30 ounces of water is gone. Watch the timer to track your brew progress.
At 3:45-4:00 time, the brew should finish. If there is still water dripping through the grounds when timer reaches 4:00, pull the Chemex filter at this time to prevent overextraction. It's best to pull the filter off near your sink or other drain.
ENJOY THE FRUIT OF YOUR LABOR
The Chemex filter should slide right out with spent coffee grounds still in it. Use a mild detergent to clean your Chemex and rinse with plenty of water. Place the Chemex upside down to dry.