Filterbasket blindfilter

The blind filter is one of the most underestimated types of filter baskets. But what does a blind filter basket do?

The blind filter is used for backflushing the brewing group with cleaning detergent. This is done for cleaning the internals and the brewing group solenoid valve.

There are only 3 models of blind filter.  You do have 1 model for La San Marco espresso machines, You have 1 model which used on some Wega/Astoria groups and on all La Spaziale espresso machines. The last one is a universal model which can be used on basically every commercial brewing group. There is also a universal blanking disc, this can also be used in most commercial espresso machines.