This coffee dosing ring is a magnetic espresso dosing tool for 51mm, 53mm, and 58mm portafilters. Made from food-grade aluminum alloy, it helps reduce stray grounds during grinding, distribution, and tamping for a cleaner, more consistent espresso workflow.

• Fits 51mm, 53mm, and 58mm portafilters
• Food-grade aluminum alloy is lightweight and rust-resistant
• 8 to 10 evenly spaced magnets help keep the ring securely in place
• Flared anti-fly opening helps catch grounds and cut waste on the counter
• Works with many Breville, DeLonghi, Sage, and E61-style setups
• Rinses clean with water or wipes clean with a damp cloth

Compared to dosing directly into an open portafilter, this ring adds a simple barrier that helps keep coffee grounds inside the basket instead of on your scale, mat, or machine tray. It is useful for home baristas dialing in fresh ground coffee and for cafe workflows where speed and cleanliness matter. Please check that your portafilter is magnetic before use, as magnetic response can vary by material and design.

Available inner diameters are 51mm, 53mm, and 58mm, with an approximate height of 18.5mm. Not dishwasher safe. For daily espresso prep, this is a practical coffee dosing tool that supports tidier puck preparation and less mess around your espresso station.