Step 6Pound and Blend
At this point you probably have a granular charcoal. After rinsing off the dust this granular charcoal will work in homemade water filters for aquariums, fish ponds, water fountains, etc. Or you can give it to your chickens or parakeets for bird scratch - a simple remedy for upset tummies.
But, if you want charcoal powder, then empty your crude black gravel and dust into a blender (the one your wife wants to replace with a food processor) and gradually notch it up. You are done when you are satisfied it is as ground up as you are going to get it.
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