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Production Process of Hijiki

Hijiki seems like its just plain dried seaweed. However, there are few processes to be taken to go out on the market. You can find many wisdom from production due to dealing hijiki since ancient times in Japan.

Ise Method

A method developed in midland of Japan, Mie prefecture. Most of hijiki produced in Japan is made with this method.
Harvest During spring tide, hijiki is hand harvested with the sickle.
Dry Hijiki is then sun-dried at the site. At this state, hijiki is still brown to dark green color and has astringent taste.
Reconstitute & Cleanse Dried hijiki is taken to processing site to reconstitute and cleanse any dirt and excess salt.
Steam Hijiki is steamed for couple hours. By steaming, bitterness inside hijiki is washed off.
Dry Once steamed hijiki is dry, it's complete.
  1. 1. Harvest
    During spring tide, hijiki is hand harvested with the sickle.
  2. 2. Dry
    Hijiki is then sun-dried at the site. At this state, hijiki is still brown to dark green color and has astringent taste.
  3. 3. Reconstitute & Cleanse
    Dried hijiki is taken to processing site to reconstitute and cleanse any dirt and excess salt.
  4. 4. Steam
    Hijiki is steamed for couple hours. By steaming, bitterness inside hijiki is washed off.
  5. 5. Dry
    Once steamed hijiki is dry, it's complete.

Boshu Method

A method developed in Boso penninsula located east side of Japan. Boshu method is less popular compared to Ise method. Unlike Ise method, hijiki made from Boshu has the stronger salt flavor.
Harvest During spring tide, hijiki is hand harvested with the sickle.
Boil or Steam Hijiki is then heated. Within this method, either boiling or steaming is allowed. During the process, bitterness inside hijiki is trimmed off.
Dry Hijiki is dried using either sun-dried or machine dried.
  1. 1. Harvest
    During spring tide, hijiki is hand harvested with the sickle.
  2. 2. Boil or Steam
    Hijiki is then heated. Within this method, either boiling or steaming is allowed. During the process, bitterness inside hijiki is trimmed off.
  3. 3. Dry
    Hijiki is dried using either sun-dried or machine dried.
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