Powder cocaine cannot be smoked. Before cocaine can be smoked, it must be made heat-stable. This is done by dissolving the cocaine powder in water and adding baking soda or ammonia. The substance that emerges is called freebase coke or crack. Crack cocaine can also be bought ready-made.
These substances can be consumed by smoking or ‘chasing the dragon’. In the latter case, the freebase or crack cocaine is heated on a piece of metal foil. The vapours that are released are inhaled through a thin tube. Freebase coke can also be smoked in a short clear pipe called a ‘crack pipe’.