Belch Powder

• Type: Joke Product
• Owners: Sold by various joke shops, most notably Zonko's Joke Shop.
• Maker: Unknown, but it is a commercially available product. Fred Weasley and George Weasley sold similar items at Weasleys' Wizard Wheezes.

Belch Powder is a magical substance created for pranks and amusement. The novels do not provide a specific description of its colour, texture, or packaging. As a powder, it is likely intended to be surreptitiously added to a victim's food or drink.

The sole magical property of Belch Powder is to cause a person to belch loudly and repeatedly. Its effects are immediate upon ingestion. The product is popular among young wizards and witches, particularly Hogwarts students, who use it for practical jokes.

Belch Powder serves as a world-building detail, illustrating the types of magical mischief available to students in the wizarding world.

• During the 1993-1994 school year, Ron Weasley expressed his excitement to buy items like Belch Powder from Zonko's Joke Shop ahead of his first trip to Hogsmeade, indicating its reputation as a desirable joke product (PA14).
• The powder was officially banned at Hogwarts School of Witchcraft and Wizardry. While serving detention in Dolores Umbridge's office, Harry Potter noticed a file belonging to the caretaker, Argus Filch, which contained a list of confiscated and forbidden items, including “Belch Powder.” This underscores the ongoing efforts by the Hogwarts staff to curb student pranks (OP28).

• Belch Powder is featured as a usable item in the Harry Potter and the Prisoner of Azkaban video game. In the game, it can be thrown to create a cloud that distracts enemies by causing them to start belching (video game).