Residual solvents
Any solvent remaining in cannabis comes from the solvent used during the extraction process. Common solvents include propane, ethanol, and butane. Most jurisdictions limit the amount of residual solvents allowed in a packaged product.
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Residual solvents are generally removed when the Required purging methods are performed correctly.
Regulations generally impose strict limits on the amount of residual solvents permitted in cannabis products.

