Keep your espresso machine in top condition with the Ten Mile Blind Filter Disc. Designed to fit standard portafilters, these stainless steel filters are essential for back-flushing your espresso machine to remove built-up coffee oils and residues. Back-flushing with a blind filter prevents coffee oils from accumulating, which can lead to bitter-tasting coffee and potential damage to your machine's 3-way valve. Regular cleaning ensures consistent performance and great-tasting espresso every time. How to Use a Blind Filter Remove the regular filter basket from your 58mm or 54mm portafilter handle. Insert the blind filter and add a small amount of espresso machine cleaning powder. Perform a back-flush to clean the group head. Please Note: Always check your machine’s manual to ensure it is suitable for back-flushing. Ten Mile Blind Filter Disc Features Universal Fit: Standard 58mm and 54mm sizing fit various espresso machines for convenience. Built to Last - Crafted from high-quality stainless steel, it's built to withstand high-pressure commercial environments. Promotes Longevity - Essential for maintaining semi-commercial and commercial espresso machines. This Product Includes 1 x Ten Mile Blind Filter Disc Specifications Material Stainless Steel Diameter 58mm and 54mm Compatible With 54mm and 58mm Portafilters