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Ethanol-based extraction

Liquid solid separation to extract cannabis product from solvents

Ethanol is a popular choice for cannabis extraction, having played a significant role in botanical extraction for thousands of years due to its wide availability. Using this method, dry or frozen cannabis material is soaked in pre-chilled ethanol, separating the plant’s trichomes from the rest of the plant matter. Ethanol extraction of trichomes can be achieved through cold or warm extraction. These methods of extraction produce a high percentage of cannabinoids while leaving low levels of terpenes to be removed during filtration. In order to remove the ethanol from the extract, the solution needs to be filtered. This low-cost method is favoured amongst producers due to its high throughput and low electrical costs.