Acid Oils: The Refinery’s Confession, the Soap Maker’s Feedstock
Every litre of refined cooking oil hides a small confession: refining removes free fatty acids by washing them out as soapstock — and somewhere, that soapstock must go. Acidulate it, split the fat back out, and the refinery’s loss re-enters commerce as Acid Oil: high-FFA fatty streams that four industries queue to buy.
Four exits from one stream
Soap makers were the original customers — acid oil’s fatty acids saponify straight into laundry and toilet bars, with Palm Acid Oil’s hard profile prized for firm soaps and Soya’s softer cut for blends. Feed compounders buy metabolisable energy by the tanker. Oleochemical splitters convert the FFA into distilled fatty acids, and biodiesel absorbs suitable streams through esterification routes. Each buyer reads the same certificate differently: FFA percentage, moisture-impurities-unsaponifiables (MIU), and origin profile set every price.
Trading the honest panel
Byproduct streams reward assay honesty above all. SIPL trades Soya, Palm and Mixed acid oils with certified panels, moving tankers and flexis from Gujarat’s refining corridor — Kandla to Mumbai — to buyers across Bangladesh, Pakistan, Vietnam and Malaysia.
The circular fat economy, professionally run — visit the Acid Oils page and request current assays and pricing today.




