Aromatherapy Certification Practice Test 2025 - Free Aromatherapy Practice Questions and Study Guide

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What does the term "cold pressing" refer to in essential oil extraction?

A method using steam distillation

A process involving heat extraction

A technique for extracting oils without heat

The term "cold pressing" in essential oil extraction specifically refers to a technique for extracting oils without the use of heat. This method typically involves mechanically pressing plant materials, such as citrus peels, to release their natural oils. By avoiding heat, cold pressing preserves the integrity of the oil and retains its volatile compounds, which can be sensitive to temperature changes. This is particularly important for ensuring the aromatic and therapeutic properties of the essential oil remain intact.

Other extraction methods, such as steam distillation or heat extraction, involve elevating temperatures that can alter the chemical composition of the oils. Similarly, processes that utilize chemical solvents can also change the essential oil's purity and properties, which does not apply to the cold pressing technique.

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A method that requires chemical solvents

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