The theme of this episode is marinating and the teacher is chef Saito, mentor to a number of famous chefs worldwide. Chef Saito will instruct how to prepare fish by tossing it with salt to remove the moisture, then marinating it in vinegar. Vinegar marination is a technique invented long ago in Japan to preserve fresh fish, and has been passed down for generations. It's great for not just preserving fish but for using the vinegar to give fish a delicious flavor that's unlike sashimi. They'll also be learning a modern spin on the recipe that's rolled up in nori with uniquely Japanese herbs - don't miss it!