Starbucks Cold Brew – how many have had it? I love my coffee and I’m in love with the Cold brew. It’s so popular that by 4:00 pm most days it’s gone. What is it? The coffee is brewed for hours (20) in cold water to curb the acidity. The drink is smooth enough to take black, meaning there’s no need to add any sweetness, flavor shots, or trans fat-laden creamers. For some it can mean a whole lot of calories reduced each day! Hurray for Starbucks!