Winterization of Vegetable Oils provides clarity to the oil in the cold by removing the high melting point paraffins (waxes) and stearins in the oil.
Three Stage Winterization. Process
- First Stage: The bleached oil is cooled to winterization temperature in the controlled heat exchanger system.
- Second Stage: Filter aid (perlite/kieselguhr) is added and the oil is slowly cooled and rested at low temperature to allow wax crystals to grow.
- Third Stage (Maturation & Filtration): Oil ripener. It is kept in crystallizers for a certain period of time to ensure full maturation of the crystals and is then sent to filters to be filtered.