What paraphernalia is commonly used for heating substances in cocaine use?

The use of a butane torch is common in heating substances for cocaine use, particularly in the preparation of freebase or crack cocaine. Butane torches can produce a strong, focused flame that allows for quick and efficient heating of the substance, which is essential for vaporization. This method enables users to inhale the drug more effectively.

The other options, while they may provide heat, are not typically associated with the specific needs of cocaine preparation. Matches could ignite the substance but lack the intensity and control needed. Candles provide a less concentrated heat source, and stoves may not offer the precision required for the process. Therefore, the butane torch stands out as the most effective and widely recognized tool for this purpose.