The Flemish coffee Rombouts company was founded in Antwerp in 1896. In 1958 the company launched its first One Cup Coffee Filter for the Brussels World Exhibition, allowing drinkers to make a cup of coffee using the perfect amount of coffee that had been roasted and ground using traditional methods. In 1964 the company began marketing the concept and enjoyed much success in the horeca and retail sectors. In 1966 Rombouts was appointed a "Certified Royal Warrant Holder of Belgium".