It must be too good to be true: a heaping bag of fresh kale or baby spinach, marked by the words “READY TO EAT” or “TRIPLE WASHED” or “PRE-WASHED.” A bag of greens you could, conceivably, rip open ...

As much as the best baristas in America can control a cup of coffee when the kettles are steaming and the scales are beeping, the fate of a bean is sealed far earlier, while still in its green state ...