Residual solvents are chemicals that may remain in cannabis products after the extraction process.
Also called / Category:
Also called: Solvent residues / Category: Lab Testing & QA/QC
Key takeaways:
- Residual solvents are often found in concentrates and extracts.
- They can affect the safety and quality of cannabis products.
- Testing ensures products meet safety standards in Canada.
What it is / How it shows up:
Residual solvents are typically discussed in the context of cannabis extracts and concentrates, and they are often listed on Certificates of Analysis (CoAs) provided by licensed producers. These solvents are used during the extraction process to separate cannabinoids and offset-4 transition-colors hover:underline" title="Learn more about Terpenes">terpenes from the plant material. However, if not properly purged, they can remain in the final product. The presence of residual solvents is a concern because they can affect both the taste and safety of cannabis products. Regulations require testing to ensure that levels of these solvents are within safe limits.
How it’s measured or identified:
- Gas chromatography
- Mass spectrometry
- Headspace analysis
Use in context:
- "Make sure to check the CoA for residual solvents before buying concentrates."
- "The extraction method impacts the level of residual solvents present."
- "Health Canada regulates the allowable limits of residual solvents in cannabis products."
Safety & compliance in Canada:
- Health Canada sets strict limits for residual solvents in cannabis products.
- Licensed producers must test their products to ensure compliance with safety standards.
Related terms / See also:
FAQs:
What are common residual solvents found in cannabis products? Common solvents include butane, propane, ethanol, and hexane. These are used during extraction and should be at safe levels in the final product.
Why are residual solvents a concern? They can affect the taste and safety of cannabis products if present in high concentrations, which is why testing is crucial.
How does Canada regulate residual solvents in cannabis? Health Canada mandates testing and sets maximum allowable levels to ensure product safety and quality.
Sources:
- Health Canada
- PubChem