K-Food GuideKorea Food Guide

Seaweed Soup

미역국
mi-yeok-guk

A clear and light soup made primarily with seaweed and either beef or clams. It is characterized by the soft texture of the seaweed and the refreshing taste of the broth.

Category
Soups

Cultural background

It is primarily eaten on birthdays or special occasions, and is also served to mothers as a recovery meal after childbirth.

Origin & history

Seaweed Soup is made by soaking dried seaweed and simmering it into a soup. The practice suited coastal households well, where sea vegetables were easy to gather and store, and the soup became a common part of everyday home cooking.

A long-standing custom is to serve Seaweed Soup to mothers after childbirth. The seaweed is soft, the broth is warm and easy to eat, and the dish has been regarded as food that helps the body recover. For that reason, eating Seaweed Soup on a birthday is more than a simple celebration; it is a way to remember the day of one's birth and one's mother at the same time.

Regional & modern variations

  • Beef Seaweed Soup — The most common version in home cooking. The beef is stir-fried first, giving the broth a nutty richness and savory depth.
  • Clam Seaweed Soup — This version is simmered with shellfish such as bajirak clams or mussels. Rather than meaty richness, the aroma of the sea and a clean, refreshing broth flavor stand out more clearly.
  • Perilla Seed Seaweed Soup — Ground perilla seeds make the broth slightly milky and nutty. Compared with clear Seaweed Soup, the texture is softer and heavier.

How Koreans eat it

Birthday Seaweed Soup is usually less like a cake at the center of a party and more like a symbolic bowl placed on the breakfast table. On the other hand, some people avoid Seaweed Soup on the day of an important exam. The slippery texture of the seaweed is linked to a pun-like superstition about “시험에 미끄러진다” (siheom-e mikkeureojinda, “to slip/fail on an exam”).

Taste & how to choose

Seaweed has a soft, slightly slippery texture when chewed. First-time eaters may find its distinctive ocean aroma unfamiliar. A good Seaweed Soup is not too oily, the seaweed is not tough, and a warm, savory aroma comes through before any fishy smell.

Similar dishes

Goes well with

steamed rice— White rice
Kimchi— Fermented napa cabbage kimchi

Frequently asked questions

Why do Koreans eat Seaweed Soup on birthdays?
The custom is connected to mothers eating Seaweed Soup after childbirth. Eating Seaweed Soup on a birthday carries the meaning of remembering the day you were born and your mother at that time.
Should I avoid Seaweed Soup on exam day?
No strict taboo requires you to avoid it. The idea comes from a superstition that links the slippery feel of seaweed with “시험에서 미끄러진다” (siheom-eseo mikkeureojinda, “to slip/fail on an exam”), so many people do not worry about it.
Is the seaweed in Seaweed Soup the same as gim or dasima?
They are all sea vegetables, but they are used differently. Seaweed for Seaweed Soup is soaked and eaten as the main ingredient in the soup, while gim is usually dried into thin sheets and eaten with rice, and dasima is often used to flavor broth.

Last reviewed: 2026-10-07