Cold brew has been my go-to method for brewing coffee since my coffee maker broke. It's low-tech, but I love the smooth, high-test results. But there's a little more nuance to cold brew, as coffee pro ...

Diehard fans of cold-brew coffee put in a lot of time and effort for their preferred caffeinated beverage. But engineers at the University of New South Wales, Sydney, figured out a nifty hack. They ...