Prep time: 10 mins
Cook time: 24 hours
Total time: 24 hours 10 mins
Serves: 2 cups
Makes about 2 cups of coffee concentrate
- 3½ cups finely ground medium roast coffee (see note)
- Kosher salt (optional)
- Stir together coffee and 3½ cups room-temperature water in large French press. Allow raft of ground coffee to form, about 10 minutes, and stir again to incorporate. Cover with plastic wrap and let sit at room temperature for 24 hours (an hour shorter or longer is fine).
- Using French press plunger, press firmly on grinds to separate them from concentrate. Pour coffee concentrate into coffee filter-lined fine-mesh strainer set over large measuring cup. Let sit until concentrate filters through, up to 30 minutes. (You should have about 2 cups of coffee concentrate; concentrate can be covered and refrigerated for up to 3 days).
- Combine ½ cup coffee concentrate, ½ cup cold water, and pinch Kosher salt (if using) and pour into glass with ice. Drink.