CO2 extraction is a method of extracting essential oils from plant material using carbon dioxide (CO2). It is a relatively new technique that has become popular in recent years due to its efficiency and the fact that it does not involve the use of solvents.

In CO2 extraction, pressurized CO2 pulls essential oils from the plant material. The CO2 is passed through the plant material at high pressures and temperatures, which causes the essential oils to be released from the plant cells. The CO2 is then allowed to expand, causing it to return to a gas form and leave behind the extracted essential oils.

Overall, CO2 extraction is an effective and efficient method for extracting essential oils from plant material. It is becoming increasingly popular due to its many advantages and exceptional scent profiles, usually, very close to the plants they originate from.

1. Safe and clean: CO2 extraction does not produce any hazardous by-products or leave any residue in the final product, making it a relatively clean and safe method of extracting essential oils.

2. Wide range of oils: CO2 extraction can be used to extract a wide range of essential oils, including those sensitive to heat and damaged by traditional steam distillation methods.

3. Efficient : CO2 extraction is a relatively efficient method of extracting essential oils and can quickly produce a large amount of oil.

4. Versatility: CO2-extracted essential oils can be used in a variety of applications, including aromatherapy, skincare, and as a natural ingredient in food and beverages