Itacho Sushi using Blue Fin Tuna is freshly supplied by [やま幸], a renowned supplier from Toyosu Market. Founded by Yamaguchi San in Showa 49 (1974), [やま幸] has been a trusted name from Tsukiji to Toyosu, specializing in premium, high-quality tuna for many years. Their offerings include a variety of tuna, both fresh and frozen, such as Blue Fin Tuna, Indian Tuna, and Swordfish, earning them the nickname "Tuna Department Store" in the market.

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Blue Fin Tuna is considered the pinnacle of tuna varieties, distinguished by its exceptional quality, rich flavor, and superior texture. Unlike other types of tuna, Blue Fin Tuna boasts a higher fat content, resulting in a buttery, melt-in-the-mouth experience that is highly prized by sushi and sashimi connoisseurs. Its deep red color and marbling are indicators of its premium status, offering a more luxurious and refined taste compared to other tunas. Sourced from the best suppliers, Blue Fin Tuna is a true delicacy, celebrated for its unmatched quality and exquisite dining experience.