What type of drug is often smoked using a piece of foil?

The correct answer is that heroin is often smoked using a piece of foil. In particular, the method of using foil to smoke heroin has become more prevalent among users seeking an alternative to injection. They typically heat the heroin on the foil, allowing the vapors to be inhaled, which can provide a quick onset of effects.

While smoking crack is also a common method of use, it is typically done in a pipe rather than on foil. Cocaine in its powder form is usually snorted, although freebase cocaine can be smoked. Marijuana is generally rolled into joints or packed into a bowl for smoking, rather than using foil. Understanding how different drugs are consumed can highlight the varying practices and preferences among users, reflecting both the substance's form and its associated risks.