I have too much, so I'm offering to sell it. Additive-free, unbleached, uncolored High-quality "Tengusa" 100% 100g Expiration date: November 2026 Retail price: 1620 yen Ogasawara Shoten's Ito Kanten (thread agar) uses "Tengusa" (agarweed) as its raw material. Carefully selected tengusa and pure underground water from the Southern Alps are all that make up the highest quality Ito Kanten. Tengusa is sourced only from high-quality areas in the clean seas of western Japan and overseas, and several varieties are blended in an optimal ratio to maximize the flavor and texture of the agar. The dried tengusa is weighed and carefully washed. After soaking in water overnight to remove impurities, the optimal amount of water is added, and it is boiled in a pot. The ability to discern the quality of the tengusa and the techniques of blending and extraction are the treasures of Ogasawara Shoten, built over a history of 100 years.