Wiped-film distillation is a process used to purify and separate cannabis extracts by removing impurities under reduced pressure and temperature.
Also called / Category:
offset-4 transition-colors hover:underline" title="Learn more about Short-path distillation">Short-path distillation, Thin-film distillation / Extraction & Processing
Key takeaways:
- Ideal for creating high-purity cannabis concentrates.
- Removes unwanted compounds like solvents and pigments.
- Uses reduced pressure to prevent thermal degradation.
- Commonly seen on product labels or Certificates of Analysis.
What it is / How it shows up:
Wiped-film distillation is a specialized technique often mentioned in cannabis product descriptions or on Certificates of Analysis. It involves applying a thin film of cannabis extract on a heated surface under a vacuum, which allows for the separation of components based on their boiling points. This process is efficient in producing high-purity concentrates by stripping away undesirable compounds like solvents or pigments, ensuring the end product is clean and potent. Often associated with premium cannabis products, it's a preferred method for producing both THC and CBD oils.
How it’s measured or identified:
- Purity levels indicated in Certificates of Analysis.
- Boiling point ranges for different cannabinoids.
- Vacuum pressure levels used during the process.
Use in context:
- "This THC oil is made using wiped-film distillation for maximum purity."
- "Wiped-film distillation ensures our extracts are free from unwanted residues."
- "The distillation process helps maintain the potency and flavour of the product."
Safety & compliance in Canada:
- Must comply with Health Canada regulations for production and labelling.
- Producers should ensure no harmful solvents remain in the final product.
Related terms / See also:
FAQs:
What is wiped-film distillation used for? Wiped-film distillation is mainly used to purify cannabis extracts by removing impurities and separating compounds based on their boiling points, resulting in high-purity concentrates.
How does wiped-film distillation differ from other methods? Unlike other methods, wiped-film distillation uses low pressure and temperature to avoid thermal degradation, making it ideal for sensitive compounds like cannabinoids.
Is wiped-film distillation safe? Yes, when performed correctly and in compliance with regulations, it produces safe and pure cannabis extracts free from harmful residues.
Sources:
- Health Canada
- PubChem
- Scientific literature on distillation processes