Saikyo Miso originated in Kyoto — a city that has been a center of politics, economics, and culture for more than a thousand years—and has been cultivated by the elegance of royalty. (Saikyo means “west city,” the former name for Kyoto.) Saikyo Miso has been a valuable part of the Imperial Palace’s hare (soul rejuvenation) ceremonies and has developed along with the food culture of the capital city. It is known for its generous amount of rice malt, its sweetness due to its low sodium content, and its beautiful light beige color.
The fermentation period for this miso is relatively short which contributes to the color and the buttery, smooth consistency. Compared with other miso, saikyo has the least amount of salt (5 percent to 10 percent) which minimizes the intense flavor to a naturally sweet, mild taste. Fish fillets are marinated in sweet miso for at least 2-3 days or up to 5-7 days for thicker slices before being grilled.