The Poffin House is a house in Hearthome City located west of the Poké Mart. It is the only place where players can make Poffins, a form of Pokémon food used to raise a Pokémon's Super Contest stats. It contains just one room, which has various non-player characters and a Poffin making machine inside.
Source: Experience and http://bulbapedia.bulbagarden.net/wiki/Poffin_House
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