Winterization is a known refinement process that aims to remove certain compounds — such as fats, lipids, waxes — from cannabis extracts. The winterization of oil purifies crude extracts, increasing the quality and flavor of the produced oil.
Below are the significant steps that comprise Cannabis winterization:
- Mixing the cannabis extract with ethanol
- Freezing the solution that makes the undesirable compounds solid
- Passing the solution through a filter
- Removing the ethanol from the solution.