Srin85 According to Google Gemini:
Yes, the DF54 V4 (often noted as production revision 1.4) directly addresses the clogging reputation that plagued early batches of the grinder.
The V4 specifically targeted the narrow exit chute where fine espresso dust tended to pack in and choke the motor.
Key Changes in the V4 to Stop Clogging
Wider Exit Chute: The single biggest hardware change in the V4 is a enlarged, rectangular exit chute. By widening the channel, grounds have more room to drop freely into the dosing cup without bridging or jamming.
Upgraded Metal Declumper: Earlier revisions used thicker or plastic flaps that held coffee back, encouraging compaction behind the burrs. The V4 uses an updated thin metal declumper that breaks up clumps without creating a physical bottleneck.
Repositioned Plasma Ionizer Probes: The static-neutralizing ionizer pins were repositioned slightly further up/out of the direct physical path of the falling grounds. This stops fine coffee dust from quickly coating the pins and shorting out the static control.
Does it still clog?
While the V4 is vastly improved over the original launch units, it can still choke if misused, simply because 54mm flat burrs pushing fine espresso grinds through a compact body will always present a physical bottleneck.
To keep a DF54 V4 completely clog-free, the same golden rules apply:
Hot-start: Always turn the motor on before dropping your beans in.
Go easy on RDT: If you spray your beans with water to cut static, use the absolute lightest mist possible. Excess moisture makes fine espresso dust stick to the chute walls and cake up.
Use the bellows: Give the top bellows 2–3 firm pumps at the end of every grind while the motor is still spinning to clear the chute completely.