How to backflush your espresso machine the right way

This guide explains backflushing — what it is, which machines can do it, how often, and the right technique. Backflushing is the daily-to-weekly group cleaning routine that removes coffee oils from the dispersion screen and the three-way solenoid valve. The article distinguishes clearly between machines that can backflush (those with a three-way solenoid — including most prosumer machines and the higher-end Breville range) and those that cannot (most single-boiler thermoblock machines like the Bambino, where attempting to backflush will damage the brew valve). It walks through the technique: insert the blind basket, run the brew button for 5–10 seconds, release, repeat three times for a water-only daily flush, or once with a small dose of Cafetto cleaning powder for the weekly chemical clean. The guide covers the common mistakes — over-dosing the chemistry, not rinsing thoroughly, attempting it on the wrong machine — and addresses the specific blind-basket sizes for each major group standard (58mm E61, 54mm Breville, 53mm Bezzera, 51mm older machines). Cross-sells include Cafetto cleaning powder and tablets, the right blind basket for the user's machine, group brushes from the Coffee Parts house range, and the Espazzola brush for deep group cleaning.