Deep cleaning performance This nonporous blind basket prevents coffee oil and residue buildup in the group head, supporting effective back flushing on semiautomatic machines with pressure release mechanisms. It helps keep the brew path clean so you get consistent extraction. stainless steel construction Made from corrosion resistant stainless steel for lasting durability. It withstands repeated cleaning cycles without warping or degradation, preserving structural integrity over time. Precise 58mm compatibility Designed for 58mm portafilter systems, it replaces your standard filters during cleaning routines and works well with cleaning tablets for thorough maintenance. Simple maintenance solution Insert this blind filter into your group handle in place of regular baskets to perform back flush cleaning, effectively removing accumulated coffee grounds from internal components without disassembly. 23 practical use scenarios Daily back flush routine for a 58mm semi automatic espresso machine During maintenance, place the blind basket in the group handle, add a cleaning tablet as directed, and run a back flush cycle to remove oils and built up coffee residue from the group head. Periodic deep cleaning in a busy cafe Use the blind basket to perform back flush cleaning on a regular schedule, helping maintain flavor consistency and reliability by eliminating stubborn coffee oils from the internal pathways. Home or small caf setup with 58mm portafilters When preparing for a maintenance window, swap the regular basket for the blind basket to simplify back flushing and keep the internal components clean without disassembly.