Polysorbate 80 is the emulsifier that keeps ice cream smooth and sauces from splitting. It is built partly from a fatty acid, and that fatty acid is where the vegan question lives.
Made fromSorbitol + fatty acid
The variableFatty acid (plant or animal)
VerdictIt depends
Where it hides
Ice cream and frozen desserts
Sauces and dressings
Some baked goods
Cosmetics and medicines
What it is
Polysorbates are emulsifiers that hold oil and water together. Polysorbate 80 (E433) is the most common in food, with polysorbate 60 (E435) and 65 (E436) close behind. Its chemistry points to the sticking point:
Primary source 01 / 01
Polysorbate 80 is derived from polyethoxylated sorbitan and oleic acid.
The sorbitan half comes from sorbitol, a plant-derived sugar alcohol. The oleic acid half can be pressed from vegetable oil or rendered from animal fat. Food-grade polysorbate 80 is now commonly made with vegetable oleic acid, but the label will not confirm it, so a vegan mark or a manufacturer statement is the way to be certain.
Mono- and diglycerides (E471)This emulsifier is in half the bread aisle, and it starts life as fat. That fat can be soya oil or beef tallow, and E471 on the packet will not say which.
Sorbitol (E420)Sorbitol is a sweetener and moisture-keeper made from plant glucose. It is the reason sugar-free gum stays soft, and it is plant-based.
Stearic acid and magnesium stearate (E570)This is the quiet powder that stops tablets and sweets from sticking. The fatty acid behind it can come from vegetable oil or from beef tallow, and 'magnesium stearate' will not say.
Frequently asked
Is polysorbate 80 always animal-derived?
No. It is made from sorbitol and a fatty acid, and the fatty acid can be vegetable or animal. Much food-grade polysorbate 80 uses vegetable oleic acid, but labels rarely specify, so it is best treated as uncertain without confirmation.
Is polysorbate 60 the same?
It is a close relative built the same way, with the same fatty-acid question. The verdict is the same: it depends on the source of the fatty acid.
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