Charlemagne did much to alter the method of production, strongly encouraging better hygiene and pressing of the grapes by making it practice for the wine pressers to wash their feet although he was met with considerable opposition.
Charlemagne banyak mengubah metode produksi, sangat mendorong kebersihan dan tekanan buah anggur dengan mempraktikkannya agar para pembuat bir anggur mencuci kaki mereka meskipun dia mendapat tentangan yang cukup besar.