In a large jar or pitcher, combine the coffee grounds and water.
Stir gently until the coffee is fully saturated.
Cover the jar or pitcher and let it sit at room temperature for 12-24 hours.
After the steeping time, strain the coffee through a fine-mesh sieve or cheesecloth into another container.
Store the cold brew coffee in the refrigerator until ready to serve.
To serve, dilute the cold brew coffee with equal parts room temperature water to your desired taste.
Add ice, serve, and enjoy!