With the ongoing legalization of marijuana, a new and potentially dangerous trend of extracting the cannabis plant oils is sweeping across the United States. The concept of making marijuana extracts (commonly referred to as “hash oil”) is not a new idea and in the past, traditional “hash” was produced by mechanically separating the natural resins from the plant through sieving, milling, crushing, and/or pulverizing of the raw material. However, the advent of “blasting,” a relatively new method of passing a flammable solvent through the plant material, has led to a brand new hazard associated with the extraction process. Whether it be in a regulated commercial facility or a clandestine extraction laboratory, the potential for an uncontrolled release of flammable vapors has led to an increased number of flash fires and explosions associated with the extraction process.