Sure thing, imagine a grinder with a magnetic “safety cage” that slides over the burrs only when the motor’s off. When you flip the switch, a tiny sensor tells the cage to unlock, letting you line up your portafilter. The trick is to make the cage’s motion smooth—use a low‑friction track so it doesn’t jerk the grind. Add a quick‑release latch that snaps back once you start grinding, so the bag can’t just sit there and get nicked. That way you’ve got a lock‑in system that keeps the coffee tight but still lets you flow the espresso without a hiccup. If you want to be extra nerdy, run the lock through a microcontroller that counts turns and only unlocks after a preset number of pulses—perfect for a coffee thief who loves a good puzzle.

Got it, lock it tight and double‑check the wiring. If that cage slips, the thief gets the whole roast—definitely not what I’m aiming for. Let’s keep the magnetic field humming and the latch snappy; no room for a coffee heist in my lab.