Open Extraction

An extraction is referred to as “open” when the excess solvent is not contained, and is usually lost. When performing a butane extraction, this is done by “blasting” the cannabis with butane without any special equipment. Open extractions are generally less safe because most solvents are flammable, and they cost more money in the long term because excess solvent is lost to the environment.

Opposite: Closed Extractions

Synonyms:
Open Blasting