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A glass bottle of dark cold brew coffee concentrate next to a glass of iced coffee with milk swirls.

Cold Brew Coffee Concentrate

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Prep Time 5 minutes
Cook Time 12 hours
Total Time 12 hours 5 minutes
Servings: 4 servings
Calories: 5
Ingredients Method

Ingredients
  

  • 1 cup (120g) coarsely ground coffee beans (sea salt texture)
  • 4 cups (950ml) filtered water, cold or room temperature
  • Ice cubes for serving
  • Filtered water or milk for dilution

Method
 

  1. Grind fresh coffee beans to a coarse consistency, similar to the texture of sea salt or breadcrumbs.
  2. Place the coffee grounds into a large glass jar, French press, or dedicated cold brew pitcher.
  3. Pour 4 cups of filtered water over the grounds, ensuring even saturation.
  4. Stir gently with a long-handled spoon to break up any dry clumps and fully submerge the grounds.
  5. Cover the container with a lid or plastic wrap and allow it to steep at room temperature for 12 hours (or in the refrigerator for 18 to 24 hours).
  6. Strain the mixture through a fine-mesh sieve to remove the bulk of the grounds.
  7. Filter the liquid a second time through a paper coffee filter or a double layer of cheesecloth to remove fine sediment for a cleaner cup.
  8. Transfer the resulting concentrate to a clean glass carafe and store in the refrigerator for up to 14 days.
  9. To serve, dilute the concentrate using a 1:1 ratio of coffee to water or milk, and pour over ice.