Learn how to make cold brew espresso coffee at home. In this recipe, you'll learn the type of espresso grounds to use and how long to brew the coffee in the refrigerator.
Coarsely ground espresso coffee beans: You'll want an espresso dark roasted coffee bean. For the best tasting cold brew, make sure the beans are freshly ground to a coarse texture.
Cold water: Feel free to use whatever water you have on hand. Some cold brew experts say filtered water is best. However, I have had great success with tap water.
Add ground espresso beans and water to a 32 ounce (1 liter) glass jar. Stir or shake to combine until all the grounds are fully covered with water. Screw on the glass jar lid.
Set glass jar in the refrigerator to steep for 12 - 18 hours. Place a mesh strainer lined with a coffee filter over a medium-sized bowl. Pour the brewed coffee into the coffee filter and allow to slowly strain.
This may take up to 15 minutes. Discard the coffee grounds in the trash can (not down a garbage disposal). Transfer cold brew coffee concentrate to a small bottle or jar with a resealable lid. Store in the refrigerator for 7 - 10 days.