Here’s an educational video that shows how cocaine is made. Unfortunately there were no bare-breasted women cutting up the coke like in the movie New Jack City.
I’ve never tried cocaine before and after watching this I don’t think I ever will, especially when recycled gasoline is a main ingredient. Ammonia and sulphuric acid is also used. The filter of choice is a dirty rag.
The impurities and chemical residues will get you before the drug does.