We’re living in the Golden Age of cold brew. The caffeinated beverage dominates cafe menus and supermarket shelves year-round, and for good reason. It’s got more caffeine and richer flavor compared to iced coffee. (That’s also why cold brews often have a higher price tag.) But, arguably, if coffee equals caffeine, and caffeine equals productivity, cold brew is liquid gold that’s worth the cash. We poured samples of six cold brew products and asked eight staffers, two of whom are former baristas, to judge each cup based on sweetness, body, acidity, flavor and aftertaste.