Ethanol extractions are generally ingesting as opposed to inhaled, like the popular medicine Rick Simpson Oil. Using ethanol to extract the beneficial compounds from the cannabis plant is considered much safer and far more simple than other popular methods. Crafting an ethanol extract takes about a 3-minute wash in the chosen solvent. With that information it seems to be common sense to take more time or add heat for the purpose of extracting more of the compounds, but this will also extract undesirables like chlorophyll, plant waxes, and vegetable oil. In general, Quick Wash Ethanol (QWET) will pick up a lot of these undesirables. But again, certain methods can help reduce this pick up.
Start materials taken fresh from the plant don’t work very well for QWET since it generally has higher water content. Flowers cured to about 15% water content perform best using the Skunk Pharm Research methods. Simply wash the buds, broken up by hand and decarbed in the oven, for three minutes; agitating multiple times to ensure that the herbs are fully covered. After three minutes, strain the materials in a wire mesh strainer. Do not push on the herbs, just let them drain using gravity and time. Now put the oil into a sealed jar and give it an oil bath at 250°F to filter the extracted liquid. Boil or distill off the liquid until there is no more solvent remaining or the liquid is reduced to a simple pool of oil. At this point in the process it can either be refined further or sucked up in a syringe and used as is.