What are expeller-pressed oils?
Expeller-pressed oils are those that are extracted from their seed or plant by mechanical pressing without the use of chemicals, as opposed to most commercial oils that are extracted using petroleum-based chemical solvents. The chemical extraction process requires a distillation step at high temperatures (400-500 degrees F) to remove the solvent. This high heat destroys much of the nutritional content of the oil and can start breaking down polyunsaturated oils. Conversely, cold expeller-pressed oils retain their nutrient content and are certain to be free of chemical solvents.
