In order to ensure the highest quality of concentrates are being produced as well as ensuring the producer’s process is sound, residual solvent testing is a must. Chemical solvent impurities have a significant impact on the health of the end user.

Maine requires testing of ~20 solvents on all products except for dried flower, which has not been processed.

Maine’s Required List of Chemicals

  • Acetone
  • Acetone
  • Acetonitrile
  • Butanes
  • Ethanol
  • Ethyl Acetate
  • Ethyl Ether
  • Heptane**
  • Hexane
  • Isopropyl Alcohol
  • Methanol
  • Pentane
  • Propane
  • Toluene**
  • Total Xylenes (ortho, meta, para) **
  • 1,2-Dichloroethane
  • Benzene**
  • Chloroform
  • Ethylene Oxide
  • Methylene Chloride
  • Trichlorethylene