Make Charcoal for Homemade Black Powder and Fireworks ...
· Grinding lump charcoal with a meat grinder When I used the grinder for the first time, I ran some charcoal through it to remove any metal shavings or debris from the grinder, and I threw that charcoal away. I can't emphasize enough how important it is to me to keep any debris, which might cause sparks in the milling operation, out of my charcoal.