On this week's episode of Cooking Issues, Dave and Nastassia are joined in the studio by J. Kenji López-Alt, chef and author of the New York Times bestselling cookbook The Food Lab: Better Home Cooking Through Science. They chat about early adopters of email, whether bay leaves actually do anything to food, how to properly chop chives, liquid smoking vs. actual smoking, pressure canning, ramen-izing Italian noodles, weighing cocktail ingredients, and check in on Kenji's progress with eating vegan for the entire month of March. Plus, Dave responds to a listener's email regarding the GAPS diet.