3.2: Sources of Bakery Fats and Oils
The major steps in refining fats and oils are as follows:
- Free fatty acids are neutralized and treated with an alkali. (Wiki: alkali)
- Color is removed. (https://en.wikipedia.org/wiki/Soybean_oil)
- The fat is hydrogenated.
- The fat is deodorized.
- The fat is chilled and beaten to make it softer and whiter. This is done by a votator (a machine that cools and kneads liquid margarine).
- Fat is stored to facilitate the correct crystallization (tempering).
Soybean Oil Refining Process Unveiled | Expert Guide
https://www.bestoilmillplant.com/soya-oil-solvent-extraction-process-guide.html
The mostly used solvent to extract oil from soybean, is hexane (a little toxic)
