Grind the coffee beans to a medium to coarse grind.
Add the ground coffee and water to a jar, a French press, or a cold brew coffee machine. The recipe above makes 1 cup, or 8 ounces, of cold brew coffee, but you can toggle the amounts to see how much you will need for a larger batch.
Stir together the ground coffee and water and cover the jar or French press. If using a cold brew coffee machine, follow the instructions for your particular machine. (Some are more like a French press while others use a slow drip system.)
Place in the fridge for 12-24 hours. (24 hours is ideal.)
After 12-24 hours have passed, strain your coffee with a strainer or by pressing down the plunger of the French press if you are using one.
You can now serve your cold brew coffee as is, dilute it, or mix it with other ingredients to make a homemade specialty coffee.