Hishio is a traditional Japanese fermented seasoning that has been enjoyed for centuries, known for its rich umami flavor. Made from soybeans, barley, and salt, it shares similarities with miso but has a taste closer to soy sauce. Hishio has a deep-rooted history in Japan, especially in regions like Choshi, where its fermentation process thrives in the local climate. In this article, we’ll dive into the fascinating history, uses, and cultural significance of hishio in Japan. Keep reading to discover more about this unique and versatile condiment!
What is Hishio?

Hishio (ひしお) is a traditional Japanese fermented seasoning made from a mixture of soybeans, rice, and salt. It is similar to miso but differs in the ingredients and fermentation process. Hishio is typically used as a base for sauces, soups, or marinades, providing a rich umami flavor to dishes. Historically, it was one of the earliest forms of fermented condiments in Japan, used before miso became more popular.
Hishio History

Hishio’s origins trace back to the Zhou dynasty in ancient China (722-481 BC), where it was mentioned in the Zhou Li. It was made by salting ingredients like fish and meat, adding sake, and aging them for about 100 days. The use of fermented seasonings dates back to pre-Christian times in China. In Japan, hishio was recorded in the Taiho Code of 701, with evidence that it was made from soybeans. It was popular among common people during the Nara period and later served by the aristocracy in the Heian period as a seasoning for dried foods. Both Murasaki Shikibu and Sei Shonagon also enjoyed hishio.
About Choshi city

Choshi is popular for its soy sauce since the Edo period, thanks to its ideal climate for fermenting and maturing hishio and soy sauce. The warm winters, cool summers, and stable temperatures create perfect conditions for koji. During the Edo period, soy sauce makers thrived in Choshi, and this condiment became a vital seasoning served with meals for the workers at the factories. It was an essential side dish for the soy sauce makers.
How to make Hishio?

Hishio is a fermented seasoning made by cultivating koji on soybeans and barley, absorbing the natural elements of Choshi, and aging it for over a year. While it resembles miso, its flavor is closer to soy sauce, rich in umami. Known as an “edible soy sauce,” it can be eaten directly, used as a dip, or incorporated into cooking. The fermentation process, powered by koji microorganisms, not only enhances flavor but also provides health benefits. Hishio, made from nutrient-packed soybeans, is a versatile and nutritious condiment.
Final Thoughts

Hishio is a flavorful piece of Japan’s culinary heritage. Its deep umami taste and rich history make it a unique addition to any meal. Whether you’re a fan of traditional Japanese flavors or simply curious about fermented foods, trying hishio is a must. We hope this article has sparked your interest, and if you ever find yourself in Japan, don’t miss the chance to pick up some of this dish and experience its one-of-a-kind taste for yourself.
If you enjoyed learning about hishio, you might also want to explore other traditional Japanese fermented foods like miso, soy sauce, or natto—each offering its own unique depth of flavor and cultural story.
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