My friend, do yourself a favor and invest in a proper grinder. You can find pocket grinders with a kief catch for like $15. That catch will be your friend during the hard times. Let it build until you need it, and never clean that shit unless it is into your apparatus of choice.
ETA: Clean the grinder teeth, not the catch. Just knock it into the catch with a toothbrush before you do. Sometimes you can scrape some extra goodness up, but it sucks using a gummed grinder. Should be able to grind in one smooth motion, not too much resistance.
I do an Isopropyl bath then a quick brush with a tooth brush. Makes it grind like new.
Ive never bathed by grinder in isopropyl in 6+ years and it still grinds like new every time I clean it with my pocket knife. But I did get a steel grinder to make sure I can scrape all I want without getting aluminum in my weed
You’re probably still getting some steel in the weed. It is very unlikely the knife and the grinder share the exact hardness.
You are underestimating how good a cheap coffee grinder is. 10 seconds to do what a manual grinder takes minutes to do, costs the same despite being powered, and it can do half an Oz at a time, more if I feel like being careful. One day it’ll be too gummed up for the motor, and then I’ll go spend another 15 AUD for another one, unless it’s gone up in the years I expect it to last.