Toss about 4 1/2 ounces of coffee beans into the blender, and add about 3 1/2 cups of cold water into the blender. Cover it and toss it in the fridge for at least 12 hours (or even longer).

Grind Coffee in a Blender When You Don't Have a Proper Grinder. Adam Dachis. January 17, 2012 The other day my ...