The predecessor of the company was established from Hermann Bach’s steam mill in Győrsziget and became the first biscuit factory of Hungary, in 1880.
Koestlin had already had a biscuit factory in Bregenz, Austria but the competition was so stiff there that he moved to Hungary and brought all his equipment for biscuit-production with him in 6 stock-cars.
Under the German occupation, however, it was declared a factory for war efforts and restarted the production of only biscuits, wafers and rusk.
Between the late 1990s and the early years of the new century several important changes came into force: the headquarters of the company was shifted from Győr to Budaörs in 1997, the French Danone bought the company from the United Biscuits in 2000 and in 2007 the Danone division together with the Győri Keksz Ltd. was bought by the Kraft Foods.
In 1968, after the factory was enlarged by another division, the production of baking powder, vanilla-sugar, custard-powder and tea-flavourings could start.
After forming a joint venture with the HAAS Company (Linz, Austria), the factory (under the name Hungarocandy Kft.)