All by mechanical expression, no solvents are ever used at Caloy.
By nature, oils and fats contain pigments, chieﬂy carotenes and chlorophylls along with trace metals.
The oil is heated under vacuum to remove moisture and blended with the necessary quantity of bleaching earth.
Once it has time to act the bleaching agent is separated from the oil by ﬁltration.
The process of winterization is vital for keeping oils clear and brilliant at reduced temperatures or extended storage times.
The partial crystallization of the oil is achieved by lowering the temperature and filtering the solid waxes from the liquid phase.