Jang (장) is the family of fermented soybean sauces and pastes that underwrites nearly every Korean dish, and in December 2024 UNESCO added the making of it to its Representative List of the Intangible Cultural Heritage of Humanity. The official name of the listing is long: “Knowledge, beliefs and practices related to jang making in the Republic of Korea.” The idea behind it is short. A household takes soybeans, salt, water and time, and turns them into the three seasonings that define its cooking.
If you have eaten Korean food in the United States, you have eaten jang. Gochujang (고추장) is the red chile paste on bibimbap and in the glaze on wings. Doenjang (된장) is the savory soybean paste in the stew that arrives bubbling at a Korean barbecue table. Ganjang (간장) is soy sauce, in its Korean form.
All three start from the same fermented soybean blocks, called meju, and UNESCO’s listing covers the whole craft of making them.
What the listing covers
The inscription came through at the 19th session of UNESCO’s intergovernmental committee, on 2 December 2024. In UNESCO’s description, the listing covers the whole cycle of jang making, from preparing the soybeans to fermenting, aging and storing the sauces. Kimchi making, as kimjang, had joined the same list in 2013.
Two practices give Korean jang much of its character. The first is that doenjang and ganjang are both made from the same batch of fermented beans. The second is that some families keep aged soy sauce for decades, mixing old ganjang into new batches, so that a crock of ganjang can hold decades of continuity.
The listing also protects variation rather than a single recipe. Households keep their own methods and their own taste, and that family-by-family difference was named in the inscription as part of the heritage, not a deviation from it.
From one block of beans to three sauces
The process begins in late autumn. Soybeans are boiled, mashed and pressed into blocks called meju (메주), each about the size of a brick. The blocks are tied with rice straw and hung in a warm room to dry and ferment for weeks.
The straw is not decoration. It carries the wild molds that start the fermentation.
In late winter the dried meju goes into a large earthenware jar with brine. Over the following weeks the solids and the liquid separate. The liquid is drawn off and becomes ganjang, aged further in its own crock. The solids are mashed with salt and returned to a jar to become doenjang.
Gochujang follows a different path, built from fermented soybean powder, glutinous rice, red chile powder and salt, and it also ferments for months in a crock.
The jars sit outdoors on the jangdokdae (장독대), the raised terrace of crocks beside a traditional house, where sun and wind do the slow work. A family’s jang terrace was, and in many households still is, one of the most carefully tended corners of the property.
Why time is the ingredient
Jang is a reminder that the most important ingredient in a Korean kitchen is not one you can buy. A doenjang that has aged for three years tastes different from one aged for one, and a family ganjang that has been topped up for decades carries a depth no factory batch can match. Every other dish in the house starts from that base.
This is the same logic that runs through what Korean home cooks do differently: the work is front-loaded. A pot of doenjang stew takes ten minutes because the paste took a year. The heavy lifting happened in the crock, in the dark, with nobody watching.
American cooks have found their own way into this. Gochujang in the American kitchen has become a pantry staple over the past decade, showing up in glazes, vinaigrettes and marinades well beyond Korean recipes. Doenjang is next. A spoonful dissolved into a braise or a vegetable soup brings a savory weight that miso approaches but does not match.
How to buy jang well
You will not ferment your own meju in a Chicago apartment, and you do not need to. What you can do is buy with the same attention a Korean household gives its crocks.
Read the ingredients. Good doenjang lists soybeans, salt and water, sometimes with wheat or koji. Good gochujang lists chile, glutinous rice, fermented soybean and salt. A long list of corn syrup and flavor enhancers is a different product.
Look for age. Some Korean brands state how long a doenjang or ganjang has aged. Longer is deeper. A product labeled as traditionally brewed, or jaeraesik (재래식), follows the household method rather than the fast industrial one.
Buy from a Korean grocer where you can. H Mart and its regional equivalents carry a dozen varieties where a supermarket carries one. Ask the staff which doenjang they use at home. The answer is often a brand you have not heard of, at a price that will surprise you.
What jang teaches about a kitchen
UNESCO protects a practice, not a product. The point of the listing is that a way of thinking about food is worth keeping alive: that a kitchen’s foundation is built once and maintained for years, that variation between households is the tradition rather than an error, and that the best things in a pantry are the ones you cannot rush.
Those ideas travel. A cast-iron pan that improves with every season of use, a wooden object that is oiled and kept rather than replaced, a recipe handed down with one family’s adjustments: each is a small jang terrace in its own way. Heirloom recipes survive for the same reason a family’s ganjang does. Somebody kept topping up the crock. ❋
WONAMU. makes a bamboo cutting board designed for daily prep, 12 × 9 inches, bamboo, with a perimeter juice groove. Available on Amazon.
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