Pour room temperature water into a large jar or pitcher. Add the coffee and gently mix together until coffee grounds are fully saturated.
Cover jar or pitcher with a cheesecloth and secure with a lid or rubber band. Let coffee steep on the kitchen counter for 12 to 24 hours.
Remove the cheesecloth from the jar or pitcher and lay it flat in a large strainer. Pour the coffee through the cheesecloth and strainer into a clean container.
To serve, pour over ice. The coffee is concentrated, so taste and add a little water or milk to your liking.
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Notes
Store leftover cold brew in the refrigerator in an air tight container for up to 1 week.Try adding a pinch of ground cinnamon, nutmeg, cocoa powder or even pumpkin spice for a fun flavor twist!