I have to buy despite some reviews that decided to keep this product too expensive for two packs a 10 Tabl.zu. I knew at that point yet, how many tablets are needed for cleaning. I was lucky to have only 8, - incl.Versand paid. According Bed, instructions should be cleaned once every 250 cups or 1 month to coffee machines. That is to say, 40 or at higher price 50 Ct. in the month. What's so expensive ??? Now for the product. The application is easy and straightforward. Only in the drip tray I had. Concerns with the tablet, hot water without mechanical aid etc ??? I think that you can save the. I have the drip tray roughly drained and placed in the sink. A squirt of dishwashing detergent and HAZOP then fill hot water up to half. Then I took a normal mean I brush (hardware store) and have treated so that all surfaces and corners in the bowl. Rinsing - and be amazed. Super clean and no streaks of fat or coffee residues. Faster and more cost-effective. Conclusion for me. Clean and grease-free machine for little money. !!!!