Deom and seobiseu: the unasked-for extra that Korean markets and kitchens add

At a bean stall in Gyeongdong Market (경동시장, Gyeongdong Sijang), the seller fills a square measure with black beans until they slope over the rim and tips them into a bag. Then, without looking up, she scoops one more loose handful from the sack and drops it in. The price she names does not change, and nobody at the stall remarks on it. The first time this happens to a visitor it looks like a mistake. It is not. It has a name, 덤 (deom), and once you notice it you start seeing its restaurant cousin too: a plate nobody ordered, set down with the single word 서비스 (seobiseu).

The handful after the measuring

Deom is the small extra a seller adds on top of what you paid for. In traditional markets it travels with the old ways of measuring. Grain and bean sellers still work from the 되 (doe), a square measure of wood or steel, and the generous fill is the heaped one, the 고봉 (gobong), piled until it peaks above the rim. It is the same word Koreans use for a bowl of rice served high. Deom comes after that: a handful from the sack, a few extra chestnuts, one more bulb of garlic rolled into the bag.

Produce stalls have their own version. Tomatoes, chillies, and mandarins are often sold by the small plastic basket rather than by weight, the baskets lined up at the front of the stall with a handwritten card tucked beside each. Point at one and the vendor tips it into a bag, and often adds one or two from the pile behind. At Mangwon Market (망원시장, Mangwon Sijang), near Mangwon Station on Line 6, the gesture can turn up at the fried-food counters too, where a croquette sometimes lands in the paper bag after the order is already wrapped.

Seobiseu, the English word that means something else

In restaurants the extra goes by a borrowed English word, and it does not mean what English speakers expect. Seobiseu is not the waiting staff or the quality of attention; it means something given at no charge. A grill house might bring a steamed egg, 계란찜 (gyeran-jjim), still bubbling in its stone pot. A fried chicken shop might add a can of soft drink to the bag. In a tent bar, a 포장마차 (pojangmacha), the owner might set down a small dish of whatever is already on the stove, say "서비스예요" (seobiseu-yeyo), and walk off.

Menus can blur this. Some places print the word next to an item, a refill or a drink that comes with a set, and that is a standing offer rather than a gesture. The unprinted kind is the one that carries meaning. It is decided by the person at the stove, on that night, for that table.

이건 서비스예요, 맛있게 드세요.

Regulars, jeong, and the word dangol

The person most likely to receive deom or seobiseu is the 단골 (dangol), the regular. A dangol is not a loyalty-card tier. It is someone whose face the owner knows, who comes back to the same side-dish shop or the same chicken place, and whose order the owner half remembers. The extra is part of how that relationship is kept warm, and people often describe the feeling behind it as 정 (jeong), the affection that builds between people who keep crossing paths.

A first-time visitor can still be on the receiving end, particularly late in the day when a vendor is clearing stock, or when a stall owner is pleased by a foreigner trying a few words of Korean. A greeting of 안녕하세요 (annyeonghaseyo) on arrival and, when leaving, the market's own farewell, 많이 파세요 (mani paseyo), "sell a lot", changes the tone of an exchange more than any amount of pointing.

How to take what you did not ask for

The graceful response is small. A nod and 감사합니다 (gamsahamnida) is enough at a market stall. At a restaurant table, 잘 먹겠습니다 (jal meokgetseumnida), "I will eat well", acknowledges the dish as it lands. Refusing it, or trying to pay for it, tends to make the moment awkward for the person who offered.

The return gesture is not money. Tipping is not customary in most Korean restaurants, and pressing cash on an owner after a free plate can turn a gift back into a transaction. A dangol repays seobiseu by coming back, by sending friends, and by finishing what was set down. If you are staying in one neighbourhood for several days, the same morning bakery or side-dish shop is where you are most likely to see this unfold.

Deom is decided by the giver. The moment you ask for it, it stops being deom.

Bargaining is a separate thing. 깎아 주세요 (kkakka juseyo), "please take a little off", is heard at some market stalls over larger purchases, and rarely at places with printed prices. Asking outright for an extra handful, as if it were owed, is the quickest way to make sure it does not come.

Where the handful does not reach

Deom belongs to places where a person measures by hand. Supermarkets, convenience stores, and chain cafés price in fixed units, and an ordering kiosk has no way to add a croquette to your bag. Even inside traditional markets, more produce now comes pre-packed and labelled, and the stalls along the main aisles that cater to visitors tend to run at a faster, more fixed rhythm than the ones in the side alleys.

The gesture also thins out at the busiest hours, when a vendor working through a queue has no time to linger. It survives best in the side lanes of Gyeongdong Market, where grain, dried chilli, and root stalls run toward the herbal-medicine streets of Seoul Yangnyeongsi (서울약령시), and in the smaller residential shopping streets around Mangwon.

Going to watch it happen

Gyeongdong Market sits in Dongdaemun-gu, a short walk from Jegidong Station (제기동역) on Line 1. It is a working market rather than a food hall, and it is liveliest in the morning, when restaurant buyers and older residents do their shopping. Mangwon Market is a short walk from Mangwon Station and suits an unhurried afternoon. Traditional markets often close on set days each month and individual stalls keep their own hours, so check posted notices or the Visit Seoul and VisitKorea sites before planning a day around either.

Carry some cash in small notes alongside a card, since a few stalls prefer it for small sums, and bring your own bag. Buy in the units the stall sells, a basket, a doe, a bundle, rather than asking for a single piece; deom attaches to the unit, not to a request for less. The one mistake worth avoiding is treating the extra as your due. Watch a local shopper at the same stall: they take the bag, say thank you and mani paseyo, and leave without checking what went in.