Cunill grinding blades
Cunill was founded in 1957 and is based in Sils, Girona, in Spain. It began by supplying spare parts for Gaggia machines and grinders before moving on to complete grinders of its own, and today the range centres on professional grinders for cafes and hospitality.
Why blades wear
Grinder blades cut coffee every time you use the grinder, and the cutting edges slowly round off. As they dull, the grind gets less even, the grinder works harder and shots start running faster or slower than they should. You end up chasing the dial setting. Replacing the blades restores a clean, consistent cut. Cunill grinders use hardened steel flat burrs, which are made to last, but they still wear in daily use.
Getting the right set
Burr sets differ by diameter, thickness, shape, fixing and whether they are left or right hand. Take the old blades out and measure the outside diameter, then check for any markings. Note your grinder's model name and number. Two grinders from the same maker can use different burrs, so do not assume. Many technicians replace the pair together so that wear stays even.
Fitting and settings
Unplug the grinder before opening it. After you fit new blades, expect to re-dial the grind setting, because new burrs cut differently from worn ones. Run a little coffee through to season them and clear any dust before making drinks.
Not sure which blades you need? Send the Jetblack team your grinder model, measurements and photos, or visit a showroom, and we will help you match the right set.
