The Mk4 and some other handheld grinders are meant to have some static charge to catch fines. I typically find that some fines are indeed stuck to the plastic capsule and that quite a bit of hull material tends to stick to the bottom of the grinder. There is also some appropriately sized grind material intermixed especially with the hull material and often a little that sticks to the plastic capsule. For this grinder or others with similar features, I’m curious how aggressive folks are with emptying? Just a gentle dump of the capsule leaving a solid gram or more of material stuck to the grinder (do you compensate recipes at all for this?)? Light tap to dislodge a bit? Multiple taps to get as much off as possible especially from metallic portion of grinder? Also, I’ve always been a fan of RDT, but that is supposed to reduce static and the Mk4 design is to utilize static to catch fines. Thoughts on whether it’s a good idea or not for this grinder? Interested to hear your routine be it scientific/theoretical or just habitual. Thx.
After I grind, I firmly tap the grinder and the glass (you use plastic) twice with my finger. I never have had anything close to a gram stuck to any part of the grinder. After I tap, I use a cheapo makeup brush to clean all parts of the grinder. When I brush, I brush into the trash. I don’t try to save those grinds because they are not worth messing with.
If I noticed static the day before, I drip one drop of water off my finger into the beans after I have loaded them into the hopper, which I have found reduces static greatly. I don’t spray the beans because it gets too messy for me.
If I were you, I would also try a test, grinding into the glass container instead of the plastic. I would expect this change to reduce some static and help you keep your stray gram.