Last reviewed May 2026 · 1 min read
Is Sorbitan Monostearate vegan?
Also known as: Span 60, E491
E-number: E491
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Source can be plant or animal.
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It depends — It is produced by combining sorbitol with stearic acid.
01 · The basics
What is Sorbitan Monostearate?
An emulsifier often referred to as 'synthetic wax,' used to keep mixtures of oil and water from separating.
02 · The source
Where it comes from
It is produced by combining sorbitol with stearic acid. While the sorbitol is plant-based, the stearic acid can come from either vegetable oils or animal tallow.
03 · Alternatives
Best vegan alternatives
Plant-derived sorbitan monostearate
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Frequently asked
FAQ
Is the E491 in my dry yeast vegan?
Most major yeast brands (like Fleischmann's) use plant-derived E491, but it is not guaranteed unless the product is certified vegan.
What does E491 do in yeast?
It protects the yeast cells during the drying process and helps them rehydrate properly when you add water.
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Other emulsifier ingredients
E422 (Glycerol / Glycerin)
A sweet, syrupy liquid used as a humectant in foods and cosmetics.
E471 (Mono- and diglycerides)
A common emulsifier used in baked goods, ice cream, and margarine.
E481 (Sodium Stearoyl Lactylate)
An emulsifier used to improve the texture of baked goods.
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Related ingredients
E422 (Glycerol / Glycerin)
A sweet, syrupy liquid used as a humectant in foods and cosmetics.
E920 (L-Cysteine)
A dough conditioner used in commercial bread baking.
Calcium Carbonate
A common mineral used as a white food coloring, an anti-caking agent, and a calcium supplement.
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