Cocaine freed from impurites by treatment (usually with ether) by heating it to produce
vapors for inhalation. When you create freebbase you neutralize the
HCI, leaving you with pure cocaine. This is commonly confused with crack, which is typically 2 parts cocaine, 1 part baking soda and a little water heated gently to form crystals, which the user then smokes/inhales. Both are derived from cocaine and the effects are similar but
freebase and crack are not created equal.