How do coin-operated laundry machines and dryers work in Korean apartments and laundromats?

Korean coin laundries (코인세탁소) are everywhere, especially near goshiwons and university districts, and they're 24-hour and easy to use once you know the basics. Standard washers cost 3,000 to 5,000 won per load (small to large drum), and dryers run 1,000 won per 10 to 15 minutes. Most modern machines accept both coins and bills, with some newer ones taking T-money cards or Kakao Pay. Bring 1,000 won bills and 500 won coins as backup since change machines aren't always reliable.

Machine types: Front-load washers (드럼세탁기) are the most common with cycle options for normal (일반), delicate (섬세), and hot wash (삶음). Detergent dispensers usually self-fill, but bring your own pods just in case. After washing, transfer to a separate dryer (건조기, gas-powered, very hot and effective). Touchscreen kiosks are mostly Korean but icons are intuitive. The flow is: choose machine number, insert coins/card, choose cycle, and start.

In apartments with built-in washers but no dryer (very common since Koreans traditionally air-dry), you can either use a fold-out drying rack (빨래건조대, 20,000 won at Daiso) or take items to a coin laundry just for drying. Coin laundries also handle big items like comforters and blankets that don't fit home washers. Apps like Wassup (왔숩) show nearby coin laundry locations with real-time machine availability. Wash sneakers in dedicated sneaker washers (운동화 세탁기) at 3,000 to 5,000 won per pair, found at most coin laundries. Avoid washing during peak times like Sunday evenings.