Electronic grinder-doser apparatus of the type with weight control or “grind-by-weight”, intended to grind and precisely dose coffee in beans dispensing the ground product in a filter-holding bowl for espresso coffee. Implemented is a dose compensated weighing system, of the multi-cycle and feedback type at every cycle, carried out by a device with a load cell and specific execution programs. The cell is interposed between the machine body and a base shaped in such a way as to integrate the centering fork of the bowl, making the hooking independent. The specific programs execute each grinding and dispensing cycle with a double weighing and automatic calibration, according to an Algorithm A comprising 4 steps (AF1-AF4) and a Filtering Algorithm B. The apparatus is suitable for professional daily use and helps the operator, by automatically calibrating during use.
