Vacuum Pressure Conversion Table

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Distillation Method Vacuum Potential (mm Hg) AEBP Potential Comment
Batch w/Condenser 50 465°C

870°F

Long holding period (at OBP)

Single tray

Fractional Column 20 500°C

933°F

Low AEBP

Multiple trays possible

Good separation

Packed Column 20 500°C

933°F

Low AEBP

Single tray device

Good separation

Wiped Film Evaporator 1 585°C

1085°F

Medium AEBP

External Condenser

Single tray device

Short Path Evaporator 0.001 740°C

1365°F

Very High AEBP

Internal Condenser

Single tray device

 

Practical Benefits of Vacuum Distillation

High Vacuum Short Path Distillation offers a number of benefits for processing superior cannabis concentrates.

  • Boiling Points of materials are significantly reduced under vacuum (30oC rule)
  • The partial pressure curves of different materials may indicate the application of vacuum will facilitate the separation process and purity of the distillate.
  • Vacuum usually accelerates the evaporation rate to accomplish separation of materials more quickly.

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