Irizake

Irizake is a traditional Japanese seasoning sauce made by reducing sake with umeboshi (pickled plums). It emerged during the Muromachi period (1336–1573), before soy sauce had become widely established in Japan, and remained in common use alongside tarumiso (a liquid form of miso) until the middle of the Edo period (1603–1868).

The classic method for preparing irizake begins by heating one cup of sake and adding one large umeboshi. The plum is lightly crushed to release its full aroma. The mixture is then reduced over low heat until it has decreased by half, filtered through a cloth or sieve, and stored in a cool, dark place for one to two days so the flavor can develop. Traditionally, this is made with pure rice wine (junmai sake) and salty umeboshi pickled using only salt and red shiso.

To deepen the flavor of irizake, historical recipes also included ingredients such as toasted rice, katsuobushi (dried bonito flakes), or kombu seaweed. Seasonings such as hishio, tamari, and salt could also be added to adjust the taste. After the invention of soy sauce, the preparation of irizake changed, and modern versions may include soy sauce, white soy sauce, or mirin, ingredients that did not appear in the original recipes.

Historical sources such as the early 17th-century cookbook “Ryōri Monogatari” describe methods for preparing irizake in detail. As soy sauce spread in the middle of the Edo period, the use of irizake declined because soy sauce kept longer and had a stronger flavor. Even so, irizake has the advantage of bringing out the natural taste of ingredients rather than masking it. In modern cooking, irizake is seeing renewed interest, especially among chefs and gourmets interested in historical preparation methods. Although making it can be somewhat time-consuming, it offers an authentic taste experience of traditional Japanese cuisine.

The term irizake is made up of the Japanese words “iri” for “roasting” or “reducing” and “sake” for “alcohol.” Because of a Japanese linguistic rule known as rendaku 連濁, in which the initial consonant of the second word in a compound becomes voiced, the “s” changes to a “z.” Literally translated, irizake therefore means “reduced alcohol,” which accurately describes how this sauce is made.