To make cold brew, coarsely ground coffee beans are mixed with cold or room temperature water and then left to steep in a sealed container for a specific amount of time. The exact extraction time varies depending on preference and desired flavor, but can typically be between 12 and 24 hours.
After the extraction time, the coffee is filtered to remove the ground coffee beans and the resulting concentrate can be diluted with water or milk depending on how strong or mild you want the flavor to be. The cold brew concentrate can also be used to make various coffee drinks such as iced coffee, cold brew latte or simply enjoyed with ice cubes.