In the window of the shop stands the crown jewel of the family business: a machine developed in the 1960s that uses a patented process to remove the wafer-thin seed membrane from the coffee bean. The coffee made from the “peeled” beans contains fewer bitter substances and is therefore more stomach-friendly and has a slightly milder taste. In the café right next door, you can take a taste test—for breakfast in the morning or a coffee break in the afternoon with a piece of homemade cake.