Puly Caff is a highly effective, fast-dissolving cleaning powder used for backflushing the group heads of coffee machines. It can also be used to clean filter baskets, filter handles, as well as cups, pots, spoons, and teapots. Simply mix some Puly Caff with warm water and soak the dirty parts of your coffee machine for about an hour. Once removed from the solution, the parts will be clean and look shiny and new. To backflush a coffee machine's group head, place some Puly Caff in a blind or empty filter basket and run it as if you were preparing a drink. Foam will emerge from the waste or disposal pipe. This process should be repeated until the foam runs clear. After that, a normal backflush with just water should be performed to ensure that all cleaning products are completely removed.