Cold-brew coffee is richer in flavor than the regular kind. This method produces a kind of coffee concentrate, so don’t go overboard and make sure to dilute your glasses or you’ll be drinking far too much caffeine.
Grind coffee coarsely.
Stir coffee and water together in a large container. Cover and set out at room temperature overnight.
Line a fine mesh strainer with a large coffee filter, dampen the filter slightly, and set over a container equal in size to the first. Pour the coffee ground mixture through the strainer, allowing all liquid to run through. You may need to do this in batches. Discard the filter with the grounds, or use for mulch.
Place coffee liquid in the fridge to cool.
Remember, this is a coffee concentrate. When you pour this, remember to mix a third coffee to two thirds cold water. Add half and half or milk as desired. If you want to add ice cubes, we recommend using coffee ice cubes (just pour the mixture you like into an ice cube tray and freeze). For sweetening, we recommend simple syrup instead of sugar.