If you're tired of expensive Starbucks drinks and want to learn to make your own cold brew, this guide will help you learn everything! You'll learn the secret to cold espresso including the type of espresso grounds to use and how long to brew the coffee in the refrigerator.
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.