kimchi

  • Which of these Korean dishes is fermented?

    Which of these Korean dishes is fermented?

    As a Seoul office worker, lunchtime is my one real break of the day. Today, like most days, my colleague and I headed to our nearby baekban restaurant — a humble Korean set-meal spot that feels just like home cooking. One person, 10,000 won. Two of us, 20,000 won total. With unlimited side dish refills.

    Honestly, with the cost of living in Korea rising so fast these days, even 10,000 won for lunch feels like something to think twice about. Any dad around the world trying to make ends meet on a modest salary probably knows this feeling.

    The restaurant is in Yeouido and serves what Koreans call jipbap-style (집밥) — home-style food. There’s nothing fancy about it. That’s exactly the charm.

    Today’s Menus

    my order is JibBab – from Seoul Yeouido restaraunt

    Because I’ve been thinking a lot about fermentation lately, I want to ask my friends around the world a little question: which of today’s side dishes is actually fermented?

    In Korea, fermented food is most commonly made by salting vegetables. But it’s not just about making things salty. Depending on the vegetable — whether it’s cabbage, radish, mustard leaf (gat), or a mix of greens — and the type of salt used, the resulting flavors can be completely different. Same base ingredients, wildly different taste.

    I have a friend who loves freshly made kimchi — kimchi that’s only one or two days old. He loves the crisp, crunchy texture and the layered flavors that haven’t been overtaken by fermentation yet.

    Then there’s the other camp — people like me, who strongly prefer well-fermented kimchi and side dishes. My reason is simple: fermented food sits so much better in my stomach. As you get older, you start to notice which foods your body thanks you for. And fermented food, for me, is always on that list.

    What I love most is the sourness that comes from fermentation — and I want to be clear, this isn’t the sharp sourness of vinegar. It’s a clean, refreshing finish, almost like the lingering aftertaste of plain lemon soda (no sugar) — that last clean note that leaves your mouth feeling completely refreshed. That feeling. As a Korean, I’m deeply attached to it.


    Now, a small note on doenjang (Korean fermented soybean paste): if you’ve visited Korea and had doenjang jjigae (soybean paste stew), the doenjang you tasted was most likely from a large Korean food company. But if you ever venture outside Seoul to a small regional restaurant or a traditional Korean table, you might be lucky enough to taste doenjang made in-house — aged in clay pots for months or even years. Even near my home in Hongdae, restaurants that serve house-made doenjang are rare. The craft is slowly disappearing. That makes the ones that still do it all the more special.


    Today’s side dishes — which ones are fermented?

    That’s today’s healthy food tip from the Yeouido lunch table. Korean fermented food isn’t just delicious — it’s one of the most gut-friendly traditions in the world. If you ever visit Korea, slow down and pay attention to the small side dishes. The real magic is in the jar that’s been sitting for months.

    The answer is…

    Altari radish leaf muchim (알타리 순 무침)

    Fermented young radish greens — a Korean seasonal specialty

    The answer is: Altari radish leaf muchim (알타리 순 무침)

    Yes! The fermented dish I reached for first was altari sun muchim — seasoned and naturally fermented young radish greens.

    Altari is a small Korean radish that grows with its leafy greens still attached — a bit like a miniature daikon with a full green top. Both the radish and the young greens are eaten, and in Korean cooking, the greens are especially prized as a seasonal side dish, particularly in summer.

    How it’s made — naturally fermented in 3 to 7 days:

    • Altari radish greens
    • Coarse salt (the fermentation base)
    • Gochugaru / red pepper flakes
    • Water (optional)

    Mix everything together and leave at room temperature for 3 to 7 days. The salt draws moisture from the greens and triggers lactic acid fermentation — the same process that makes kimchi. The result: a beautifully tangy finish, a clean aftertaste, and a light refreshing texture. Strongly recommended in summer.

    The other side dishes today (namul, steamed egg, grilled fish) were all made fresh on the day — no fermentation involved.

    If you visit Korea, please seek out altari sun muchim. It won’t be on every menu — but when you find it, try it. One bite and you’ll understand why I reach for it first every time.

    That’s today’s fermentation tip from a Seoul lunch table. Stay curious about Korean fermented food.

    Come back for more! 🙏

    Frequently Asked Questions

    Q: Is altari sun muchim vegan?

    A: Yes — altari sun muchim is 100% plant-based. The only ingredients are altari radish greens, coarse salt, gochugaru (red pepper flakes), and optionally water. No fish sauce, no shrimp paste. It’s one of the rare Korean fermented side dishes that vegans can enjoy without modification. If you’re vegan and visiting a Korean restaurant, this is a safe and delicious choice to look out for. Korean food basics Korean ingredients guide

    Q: What is the difference between kimchi and altari sun muchim?

    A: Both are salt-fermented Korean vegetables, but they use different plants and have a different flavor profile. Kimchi is typically made from napa cabbage (baechu) and includes a wider variety of seasonings — often fish sauce or fermented shrimp. Altari sun muchim uses only the young greens of the small altari radish, fermented simply with salt and gochugaru. The result is lighter, cleaner, and more refreshing — especially in summer. Altari sun muchim also tends to be fully vegan, while traditional kimchi often is not. Korean flavors Korean ingredients

    Q: How do Koreans eat fermented food every day?

    A: In Korea, fermented foods are not a health trend — they’re simply part of every meal. A standard Korean lunch like baekban (set meal) will include rice, soup, and several small side dishes (banchan), at least one or two of which are fermented. Kimchi is the most common, but doenjang (fermented soybean paste), ganjang (soy sauce), and seasonal fermented vegetables like altari are always present. Koreans eat these naturally, without thinking about them as “probiotic food” — it’s just normal daily eating. Korean eating culture Korean dining etiquette

    Q: Is Korean fermented food good for gut health?

    A: Naturally fermented Korean vegetables contain live lactic acid bacteria — the same type found in yogurt and other probiotics. These bacteria are produced during the fermentation process when salt draws moisture from the vegetables and creates an environment where beneficial microbes thrive. Regular consumption is associated with improved digestion and gut comfort. Many Koreans, including the author of this post, notice that well-fermented foods sit easier in the stomach than freshly made dishes. Korean food & health

    Q: Why does Korean soup come with every meal?

    A: Soup has been part of the Korean table for centuries — it’s not just a side but a core component of the meal, used to balance flavors, help digest rice, and warm the body. In a baekban set meal, the soup (often doenjang jjigae or kongnamul guk) anchors the table alongside fermented banchan. Interestingly, doenjang jjigae itself contains a fermented ingredient — doenjang — making even the soup part of Korea’s fermentation culture. Why Koreans eat soup with every meal


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  • Why Korean Food Is Special: Fermentation, Jang, and the Wisdom of Korean Mothers

    Why Korean Food Is Special: Fermentation, Jang, and the Wisdom of Korean Mothers

    People remember places in different ways. Most of us build our memories of a space primarily through sight — which is why the first thing we do when we arrive somewhere new is pull out our phones and take photos. I used to be the same way. But my thinking has changed. When it comes to remembering a place, smell is just as powerful as sight.

    Every Country Has Its Own Cuisine — and Korea Is No Exception

    Every country in the world has its own unique foods. These dishes are shaped by a region’s distinct climate, the vegetables, produce, and meats that grow in that climate, and the cooking and preservation methods that climate demands.

    As a native Korean, I don’t think of Korean ingredients as particularly extraordinary — they’re simply what I grew up with. But if I had to name a single element that defines the flavor of Korean food, it would be jang (장류): ganjang (soy sauce), gochujang (red pepper paste), and doenjang (fermented soybean paste).

    Korea’s geography plays a major role too. Winters can drop to -15°C to -20°C, while summers climb above 30°C. Nearly half the country is covered by mountains and forests, and three sides of the peninsula border the sea. This landscape gave rise to a cuisine built on wild mountain greens used in namul (vegetable side dishes), and seasonings born from salt, meju (fermented soybean blocks), and the slow alchemy of fermentation — ganjang, doenjang, and gochujang.

    The Taste of Jang: A Foundation Unlike Any Other

    These days, most people buy their jang from supermarkets. But from my own memories growing up, ganjang, doenjang, and gochujang were the bedrock of every meal.

    What many people don’t realize is that traditional jang is not sweet. Its sweetness sits far below that of refined sugar — which is why older Koreans so commonly say, “Food these days is too sweet.” Restaurant food has drifted that way, and in my experience, Seoul-style food tends to taste noticeably sweeter than the food from Gyeongsang Province where I’m from.

    Korean Food and Its Closest Cousin

    Among world cuisines, I find Japanese food to be the most similar to Korean. Dishes like katsu, udon, and various rice-based meals share a familiar rhythm — and indeed, Japanese katsu and udon are now commonplace in Korea as well.

    Looking at what’s trending in Korea today under the label of “fusion,” the picture has shifted considerably. Traditional ingredients are increasingly being replaced or supplemented by cheese, imported vegetables (like cilantro), oyster sauce, and hot sauce. My reference point for “traditional Korean food” is rooted in what I ate growing up — a time before mayonnaise, oyster sauce, hot sauce, cheese, sausages, or imported spices were widely available or accessible.

    What to Eat If You Want to Experience Real Korean Food

    If you’re visiting Korea and want to experience its cuisine in its most authentic form, I recommend ordering jeongsik (정식) — a traditional Korean set meal.

    The elements that make Korean food globally distinctive are, at their core: rice (in its many varieties), gochujang, doenjang, ganjang (aged), and jeotgal (salted fermented seafood). Add to that kimchi, sesame oil, and perilla oil, and you have the soul of Korean cooking. Each region adds its own layers, and seasonal ingredients grown on Korean soil bring a rotating variety of flavors throughout the year.

    Even within a single category — say, gochujang — the taste and nutritional profile can vary enormously depending on how it’s made. Some gochujang uses wheat-based sweeteners; others don’t. The name is the same, but the flavor is a different world.

    Rice as the Foundation

    My dinner at a Korean sundae soup restaurant
    My dinner at a Korean sundae soup restaurant

    American staple meals center on bread. Japan and Korea both center on rice. If Korean food has a reputation for being healthy, it may be because it still uses fewer ultra-processed ingredients than many Western diets, and portion sizes — at least historically — have tended to be more modest. (That said, times have changed: my eldest son is nearly 190cm tall and close to 90kg. Maybe all that fried chicken when he was young had something to do with it — just kidding.)

    The Real Secret: Fermentation and Microbes

    The foundation of all Korean food is fermentation.

    It wasn’t until I learned about microorganisms that I truly understood why I had always craved the deep, funky, complex flavors of Korean cuisine when I was away from home. The human body contains roughly 30 trillion human cells — but it also hosts about 100 trillion microorganisms, most of them living in the digestive tract. In purely numerical terms, the microbes outnumber us. They are, in a sense, the true residents of our bodies.

    And yet, I had never really listened to them before.

    The flavor that microorganisms create appeals not to the eyes, but to the nose and mouth — something primal, instinctive. And it’s not just taste; it’s the way your body responds after eating. Many cultures around the world intuitively reach for broths and fermented foods when they’re sick — vegetable soups, chicken broth — and Korean food has operated on this principle for centuries.

    Korea’s four distinct seasons and rich biodiversity have given rise to a deeply developed fermentation culture. Each region has its own traditional foods, many of which — as Korea faces rapid aging and rural depopulation — are at risk of disappearing. Documenting where these foods come from and what they look like today matters more than ever.

    The Scent That Tells the Story

    Understanding the past and present of a cuisine opens up ideas for where it can go next.

    What I find most compelling about Korean food is its distinctive aroma — the smell that comes from fermentation, from the microorganisms native to the Korean peninsula, from the land and sea that produce its ingredients, and from the accumulated wisdom of Korean mothers who have worked with these elements for generations. Follow that scent, and you’ll find the path Korean food is meant to travel.

    The True Makers of Korean Cuisine

    Ultimately, Korean food — like the traditional cuisines of any country — is the product of mothers cooking for their families, thinking about health, using what the land around them provides.

    Korea, like the US and Japan, has its major food conglomerates: Samyang, CJ CheilJedang, Nongshim, Lotte Chilsung, Ottogi, Daesang, SPC Samlip. But even so, Korean shopping baskets still tend to lean more heavily toward vegetables than toward meat and fish compared to Western counterparts.

    Regional Diversity: No Two Kitchens Are the Same

    Korean food carries a strong national identity — but within that identity lives extraordinary regional diversity. Every region has its own way of making ganjang, doenjang, and gochujang, with recipes and flavors that differ from household to household. Think of how maple syrup varies from region to region in the United States, and you’ll get the idea.

    KBS runs a long-running program called Koreans’ Dining Table (한국인의 밥상), which has aired over 745 episodes across more than a decade. What the show consistently reveals is that traditional Korean side dishes and regional foods don’t follow a fixed recipe — they follow a mother’s hand. The flavor depends on who is cooking.

    And maybe that’s exactly what makes Korean food special: it belongs to a category called “food,” but no two versions of it taste exactly the same.

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