Since 1947, Cetercians have taken over from the Carthusian monks living in an adjoining cloistered wing, but continue to manufacture Certosa's well-known Chartreuse liqueur and herbal soaps in an adjoining shop.
The monks still produce the famous Charteuse liqueur and soap. 
mnli hypothesis: The monks still produce the famous Charteuse liqueur and soap.  premise: Since 1947, Cetercians have taken over from the Carthusian monks living in an adjoining cloistered wing, but continue to manufacture Certosa's well-known Chartreuse liqueur and herbal soaps in an adjoining shop.