Crack cocaine, often nicknamed “crack”, is believed to have been created and made popular during the early 1980s . Because of the dangers for manufacturers of using ether to produce pure freebase cocaine, producers began to omit the step of removing the freebase precipitate from the ammonia mixture.
Typically, filtration processes are also omitted. Baking soda is now most often used as a base rather than ammonia for reasons of lowered odor and toxicity; however, any weak base can be used to make crack cocaine.