1. Dissolve the contents of one bag in 1 liter of lukewarm water
2. Fill the coffee machine tank completely
3. Run a cupful of solution through the machine
4, Wait 15 minutes
5, Rinse through another cup of solution
6. Repeat until the solution is completely used up
7. Rinse the machine with a full container of clean water
And that's it! You're done, and your machine is completely clean and scale-free. It's worth repeating it every month, so you can definitely avoid damage caused by limescale!