Blind Filter (Coffee Machine Blind Filters For Cleaning Group Heads)

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Blind Filter (Coffee Machine Blind Filters For Cleaning Group Heads) Part Number: 521902 This blind filter is 58mm in size to suit a commercial E61 Group Head. What is a blind filt er and how do I use it? A blind filter is a solid stainless steel filter basket that its used in your portafilter for back-flushing your espresso machine. Unlike any other filter basket you would typically use for brewing, the blind filter is completely solid. The purpose is by preventing water passing through the water builds up and generates enough pressure to flush the group head and once the water flow has been ceased the release valve will all the high pressure to push all the water out and into the drip tray. This allows and remaining residual coffee and associated oils to be removed from the machine ready for your next brew! Show more