Informations relating to Production and Processing

Here, you will find brief descriptions of the main processes used in the production and processing of vegetable oils. In certain instances, further details are provided in the entries for individual products, particularly if these are produced by a process different from those listed here.

1 - Press-type oil production

1.1 Discontinuous Presses
1.2 Continuous Presses
1.3 Open press

2 - Extraction-based oil production

2.1 Percolation process
2.2 Immersion process
2.3 Factors that affect the extraction process

3 - Refining

3.1 Degumming
3.2 Neutralisation (with alkali)
3.3 Bleaching
3.4 Steaming (deodorising)

4 - Physical processing

4.1 Fractionation
4.2 Winterising

5 - Chemical processing

5.1 Fat-hardening (hydrogenation)
5.2 Oxidation (blowing)
5.3 Interesterification