Nori seaweed is an indispensable Japanese ingredient. Its flavor is influenced by elements from the sea as well as the nutrients that flow down from mountains. Our reporter Janni tries a selection at a 150-year-old shop and is shocked by how flavors can vary. Visit a plant that makes nori using a process inspired by traditional methods. Then, feast your eyes on colorful sushi rolls and see how nori can be used in French cuisine.