Myeongdong life
Why so many Koreans brush their teeth after lunch
Office sinks at 1 p.m., toothbrush pouches in handbags. A small cultural habit worth stealing.
Brushing after lunch is a common habit in Korea, encouraged in schools and kept up by many office workers, who carry a toothbrush pouch to work. Korean food is rich in garlic, chilli and sauce, and fresh breath matters in close-quarters office life. If you visit Seoul around 1 p.m., you may spot it in office-building restrooms.
Where you will spot it
Walk into a restroom in a Seoul office building around one o’clock and there is a fair chance someone is brushing at the sink. Toothbrush pouches are a common accessory, and convenience stores keep travel sets near the till.
Why it caught on
- School habits. Brushing after school lunch is widely encouraged, so many people grow up with it.
- Garlic and chilli. Korean lunches are full of flavour, and kimchi travels.
- Close quarters. Shared offices and meetings straight after lunch make fresh breath a courtesy.
What dentists think
Brushing after a meal is a good habit, with one caveat. After something acidic, such as citrus, vinegar dressing or a fizzy drink, enamel is briefly softer. Rinse with water first and wait about half an hour before brushing.
Try it in Myeongdong
Pick up a travel set at any convenience store, enjoy a lunch of kalguksu, and brush before your afternoon of shopping. If you are coming to us for a check-up, there is a sink with your name on it.
Questions people ask
Do Koreans really brush their teeth after lunch?
Many do. It is encouraged in schools and common among office workers, many of whom carry a toothbrush pouch.
Should I brush straight after eating?
Usually yes, except after acidic food or drinks: rinse with water and wait about 30 minutes.
iUpdated 15 October 2026. Opening hours and prices of places outside the clinic can change; check on the day.