Kasteel is the flagship beer range of Van Honsebrouck, a family-owned Belgian brewery with roots stretching back to 1900, when Emile Van Honsebrouck established the first commercial brewery in the region of Izegem, West Flanders. What began as a modest local operation has grown over generations into one of Belgium's most recognisable craft brewing families, with their story deeply intertwined with the history of Belgian brewing tradition. The Kasteel range is best known for its rich, full-bodied Belgian strong ales, including dark, blonde, and tripel styles. These beers are characterised by their high alcohol content, complex malt character, and careful fermentation processes that reflect classic Belgian brewing craftsmanship. The portfolio appeals to lovers of robust, flavourful beers with depth and character. Among the most celebrated expressions in the range is Kasteel Donker, a dark strong ale, alongside Kasteel Tripel and the fruit-infused Kasteel Rouge, which has gained considerable popularity across international markets. The brewery, also known as Bierkasteel, offers visitors an immersive experience rooted in its long family heritage and West Flemish brewing identity.