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Essential oils are volatile, aromatic compounds extracted from plants, and the quality and composition of the oil can be influenced by the method of extraction. There are four primary methods of extraction: steam distillation, cold press extraction, solvent extraction, and CO2 extraction. Steam distillation is the most common method and is suitable for many types of plants. Cold press extraction is used primarily for citrus fruits, while solvent extraction is used for delicate flowers. CO2 extraction results in a very pure, high-quality oil but is more expensive due to the cost of equipment. Understanding the extraction method is important when purchasing essential oils as it can affect the oil's quality and price.
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