The laundry is a location at Hogwarts School of Witchcraft and Wizardry where students' clothes are washed. It is run by house-elves. Their are certain kinds of house elves specifically for this job. The students put their old robes and clothes in a hamper beneath their beds, and every Saturday they are washed and dried and on Sunday they are put back in their beds, clean and neat. No one knows exactly where the wash room is, but the Weasley Twins have come close.
In 1992, Hermione Granger sneaked three Slytherin robes from the laundry, for Harry Potter and Ronald Weasley to wear while disguised as Gregory Goyle and Vincent Crabbe in order to sneak undetected into the Slytherin Dungeon.
- Harry Potter and the Chamber of Secrets (film) (Mentioned in deleted scene)
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