I have long searched for a way to the conical grinder my coffee grinder - to clean (Gastroback Advanced Pro). After I read nothing but positive about the Urnex cleaner, I would have to try it also. Result: The cleaner is very good. The grinder is absolutely free of grease after cleaning and the cleaning is very fast. The coffee tastes now again as it should.
For this product, I give an unconditional buy recommendation.