White Crystal on Kombu are the safe to be eaten, it is crystal when it is dried. Kombu (from Japanese: ??, romanized: konbu) is edible kelp from mostly the family Laminariaceae. The basic taste of Japanese food is kelp and bonito. In particular, JHL products are of high quality and have a condensed flavor. AUTHENTICALLY ASIAN- Great taste starts with great ingredients. Experience the taste and quality of fresh and natural ingredients sourced from the best locations in Korea. Our Kombu is domestically and naturally grown, harvested, and dried in the southern region of the Korean Peninsula. EXCELLENT FOR DASHI AND SOUPS - Kombu is used with bonito to make dashi broth, an essential soup stock in Japanese food. Korean kombu’s umami flavor can also enhance the flavors of other soups and stews. This package comes in portions to make it more convenient to cook with and store at home. OTHER WAYS TO ENJOY - Kombu can also add depth of flavor to savory seafood or vegetable dishes. Simply simmer in water before adding it to salads or vegetable side dishes dressed in sauces like soy sauce, miso, or sesame oil. You can also roast or tempura kombu to add a crunch to your favorite dishes. 100% NATURAL PROCESSES - Our high quality kombu starts its journey as kelp growing in the clean and clear sea of Wando, Korea. Every year the kombu is harvested at the optimal time and sun dried. By using these natural processes the kombu retains all its naturally occurring minerals and nutrients.