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Note: The amount of coffee and water varies depending on the type of coffee you are brewing and your preferred strength. As a starting point, Nero Aurum recommends using 55 grams of coffee and 800 grams of water (about 25 ounces), and then adjust according to your preferences.
Unfold your filter and place it in your Chemex, ensuring that the triple-fold portion is facing the pour spout and lays across without obstructing it.
Fully saturate the filter and warm the vessel with hot water. Discard this water through the pour spout.
Pour your ground coffee into the filter and give it a gentle shake. This will flatten the bed, allowing for a more-even pour.
There will be four pours total, and this is the first.
Starting at the bed’s center, gently pour twice the amount of water that you have coffee into your grounds (for example, 44 grams of water if you have 22 grams of coffee). Work your way gently outward, and avoid pouring down the sides of the filter. You’ll notice that adding this amount of water causes the coffee to expand, or “bloom.” Allow it to do so for 40–50 seconds.
Pour water in a circular pattern starting in the center. Spiral out toward the edge of the slurry before spiraling back toward the middle. Avoid pouring on the filter. Allow the water to drip through the grounds until the slurry drops 1 inch from the bottom of the filter. You should use about 200 grams of water for this pour.
Repeat the same pour pattern as in Step 6, adding water in 200-gram increments. Repeat once more, allowing the water to percolate through the grounds until the slurry drops 1 inch from the bottom of the filter before beginning the next pour.
Allow the water to drip through the grounds entirely.
The brew should have taken between 3.5–4.5 minutes. Serve the coffee in a cup.
Enjoy your Nero Aurum Coffee!