As part of this work, the memory of the "Jura Impressa S9" coffee machine was reverse engineered. A structured procedure was developed for this. Setting by setting and function by function, the significance of ever new memory locations emerged. Newly bundled, these were disclosed to the outside via an easily accessible API and finally presented visually on a small website. In the process, the procedure and the significance of the results were critically scrutinized and placed in the context of reverse engineering.