Backflushing baskets for espresso machines with 3 way solenoid valves. Used with Puly Caff powder to clean the group head of espresso machines. The baskets do not have any holes in at all.
Failure to back flush on a regular basis will lead to issues. Consequently these are a Barista essential.
The best backflushing baskets are the Puly Blindy versions. Because a deeper dish basket creates a more powerful flush. Therefore a more efficient clean.
When the pressure from the group head hits the basket it has nowhere to go. The pressure grabs the Puly powder and goes back up into the group head. The cleaning powder turns into a foam and breaks down the dried tannin. Leading to better tasting and smelling espresso.
It is suggested to back flush espresso machines daily with water. Flush once a week with cleaning powder. It is possible to over do it. For instance cleaning every day with powder cleaner may cause a problem. Although Puly Caff is the fastest dissolving and most effective solution on earth. Use too much and the solenoid may get clogged. Whilst this problem is easy to resolve it is best avoided.
It should be noted that you can only do this on espresso machines with a three way solenoid. On the domestic side this means it is possible to do it on a Gaggia Classic, Gaggia Baby and Rancilio Silvia. If you own an espresso machine seriously consider a backflushing basket.
On the commercial side it means nearly every model on the market, it is not possible on a lever pull model. Typically we find fitment for Expobar, Gaggia, Iberital and Rancilio machines. All work well with a blindy. Even the cheap standard basket is better than nothing.