Wiped-film distillation is an advanced cannabis extraction method that delivers ultra-pure concentrates at scale, making it a go-to for commercial producers. With its continuous flow and precision, it’s a step above traditional distillation—here’s how it works and why it excels:
What is Wiped-Film Distillation?
Wiped-film distillation uses a thin film of cannabis oil wiped across a heated surface under vacuum to vaporize and separate compounds. The process is fast and efficient, isolating cannabinoids like THC or CBD with minimal degradation.
Why Wiped-Film Shines:
Scale: Handles large volumes—perfect for industrial use.
Purity: Achieves 95-99% cannabinoid concentration.
Speed: Continuous operation beats batch-style short-path.
Preservation: Low residence time protects heat-sensitive compounds.
How Wiped-Film Distillation Works:
Preparation:
Start with winterized crude oil from ethanol, CO2, or hydrocarbon extraction.
Feed:
Pump oil into the wiped-film unit, where it spreads into a thin layer.
Wiping:
Rotating wipers or rollers spread the oil across a heated cylinder (200°F-400°F/93°C-204°C) under vacuum (0.1-1 mbar).
Vaporization:
Cannabinoids evaporate, condense on a chilled surface, and collect separately from heavier residues.
Output:
Pure distillate flows out, ready for use or further processing.
Tips for Wiped-Film Mastery:
Vacuum Control: Maintain a deep vacuum to lower boiling points—key for terpene survival.
Feed Rate: Too fast overwhelms the system; too slow wastes time—calibrate for steady flow.
Temp Tuning: Adjust heat per compound (e.g., THC at 300°F/149°C, CBD slightly higher).
Clean Runs: Regular maintenance prevents buildup that taints distillate.
Applications:
Vape Oils: Crystal-clear bases for cartridges.
Edibles: High-potency inputs for consistent dosing.
Isolates: Refined THC or CBD for blending or medical use.
Conclusion:
Wiped-film distillation is the heavy hitter of cannabis refinement, blending speed, scale, and purity into one sleek process. For extractors aiming to produce top-tier concentrates in bulk, it’s a technique that delivers unmatched efficiency and quality.
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