Itsuki Udon with Soup 22.1 oz. (627g.) comes 3 packs of fresh Udon noodles with seasoning packets. Itsuki has been in business since 1878 making quality noodles. These fresh noodles require no refrigeration. The long life noodle package is sealed, then heat-sterilized and kept in a high acid state to prevent bacterial growth. Recommend rising the noodles before use due to to the added acid may taste and smell sour. Allergens: Wheat, Soybeans, Brown Algae, Mushrooms, and Monosodium Glutamate. These noodles are manufactured in a factory which uses Fish, Crustaceans (Crab, and Shrimp) and Buckwheat.