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ACS 2018 New Orleans: The Effect of Grinding on SFE

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Study into the effects of particle size and size distribution of milled cannabis and its effects on extraction outcomes.

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ACS 2018 New Orleans: The Effect of Grinding on SFE

  1. 1. GRINDING: THE DELICATE DANCE BETWEEN OPTIMIZATION AND REPETITION TO CONTROL EXTRACTION OUTCOMES S 1F R I T S C H MI L L I N G & S I Z I N G , I N C . • Pre-processing • Considerations • Physical characterization BARRY SCHUBMEHL TECHNICAL MANAGER FRITSCH MILLING & SIZING, INC. DR. MARKUS ROGGEN VP EXTRACTIONS OUTCO • Overview • Parameters • Findings
  2. 2. PRE-PROCESSING - OVERVIEW S 2F R I T S C H MI L L I N G & S I Z I N G , I N C . Extraction
  3. 3. PRE-PROCESSING - CONSIDERATIONS S 3F R I T S C H MI L L I N G & S I Z I N G , I N C . PREVENT LOSSES • Physical / Chemical IMPROVE CONTROL & CONSISTENCY • Packing density • Extraction efficiency ALSO IMPORTANT • Worker safety • Validatable cleaning SOP – reduce risk of batch rejection • Energy & labor costs
  4. 4. MOLECULAR CHANGES THROUGH MILLING S 4F R I T S C H MI L L I N G & S I Z I N G , I N C . Does milling effect the substrate quality? 0% 1% 2% %decarb by Size 0 0.2 0.4 0.6 0.8 1 1.2 1.4 %wt. Terpenes by Size
  5. 5. EXTRACTION EFFECTS THROUGH MILLING S 5F R I T S C H MI L L I N G & S I Z I N G , I N C . What method gives the highest yield? 20 22 24 26 28 30 32 34 Non-Ground Food Blender 2 mm 6 mm 10 mm %Recovery Cannabinoid Recovery by Size 75 80 85 90 95 Non-Ground Food Blender 2 mm 6 mm 10 mm %Recovery Terpene Recovery by Size
  6. 6. EXTRACTION PARAMETERS S 6F R I T S C H MI L L I N G & S I Z I N G , I N C . • 3 kg of plant matter • Terpene Fraction (F1): 1100 psi, 34˚C, 5 h • Cannabinoid Fraction (F2): 1900 psi, 60˚C, 12 h
  7. 7. EXTRACTION PRECISION TERPENES S 7F R I T S C H MI L L I N G & S I Z I N G , I N C . 30 35 40 45 50 55 Non-Ground Food Blender 2 mm 6 mm 10 mm %conc. Terpene Concentration F1 Higher is better, Food Blender wins 0 1 2 3 4 5 Non-Ground Food Blender 2 mm 6 mm 10 mm %conc. Terpene Concentration F2 Lower is better, 2mm wins • 3 kg of plant matter • Terpene Fraction (F1): 1100 psi, 34˚C, 5 h • Cannabinoid Fraction (F2): 1900 psi, 60˚C, 12 h
  8. 8. EXTRACTION PRECISION CANNABINOIDS S 8F R I T S C H MI L L I N G & S I Z I N G , I N C . 0 2 4 6 Non-Ground Food Blender 2 mm 6 mm 10 mm %conc. Cannabinoid Concentration F1 Lower is better, 10mm wins 55 60 65 70 75 Non-Ground Food Blender 2 mm 6 mm 10 mm %conc. Cannabinoid Concentration F2 Higher is better, 2mm wins • 3 kg of plant matter • Terpene Fraction (F1): 1100 psi, 34˚C, 5 h • Cannabinoid Fraction (F2): 1900 psi, 60˚C, 12 h
  9. 9. PHYSICAL CHARACTERIZATION S 9F R I T S C H MI L L I N G & S I Z I N G , I N C . NEW METHOD • Laser particle sizer ANALYSETTE 22 NanoTec • Wet dispersion • Propylene glycol, IPA WHY? To determine the particle size distribution of material going into the extractor HOW? • Visual / sensory - No • Sieving - Limited • Optical based- Yes • Laser based - Yes Contributors: Dr. Günther Crolly, Jeff Scott
  10. 10. MILLING EXAMPLES S 1 0F R I T S C H MI L L I N G & S I Z I N G , I N C .
  11. 11. PARTICLE SIZE DISTRIBUTION - EXAMPLES S 1 1F R I T S C H MI L L I N G & S I Z I N G , I N C . Example 1: Food Blender Example 2: Milled Cannabis leaves
  12. 12. PARTICLE SIZE DISTRIBUTION - EXAMPLES S 1 2F R I T S C H MI L L I N G & S I Z I N G , I N C . Example 3: Trichome heads Example 2: Milled Cannabis leaves
  13. 13. EXTRACTION EFFECTS THROUGH MILLING S 1 3F R I T S C H MI L L I N G & S I Z I N G , I N C .
  14. 14. QUESTIONS S 1 4F R I T S C H MI L L I N G & S I Z I N G , I N C .

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