Megablend are lambic blends from producers belonging to HORAL. It is the acronym for Hoge Raad voor Ambachtelijke Lambikbieren (Higher Council for Traditional Lambic Beers) is a consortium of lambic brewers working together to promote lambic beers, brewing, and culture in Belgium. For one weekend, every two years, all participating breweries hold an open house event, called Tour de Gueuze with free tours and brew this commemorative blend of young and aged Lambic contributed by all HORAL members, a special Oude Geuze