As Food & Wine's Testing Editor, Jennifer's work focuses on finding the best tools for all sorts of cooks. She's vetted hundreds of products, from can openers to salad spinners and tortilla presses, ...

Qin Rao, MD, is a board-certified physician based in New York City. He currently works as a gastroenterologist and hepatologist at Manhattan Gastroenterology. Diarrhea and constipation are common ...