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You are here: Home / Food / Where Does Partially Hydrogenated Vegetable Oil Come From?

Where Does Partially Hydrogenated Vegetable Oil Come From?

July 22, 2020 by Karen Hill

Oils are hydrogenated, that is, hydrogen atoms are forced into their molecules under pressure to make them more saturated, because saturated fats are thicker, more solid and less liquid, than unsaturated fats.

The hydrogen atoms fill in hydrogen-poor gaps (Techspeak: double bonds, which are more rigid than single bonds) in the oil molecules, and that makes them more flexible. They can then pack together more closely and stick to each other more tightly, so they won’t flow as easily.

Result: The fat becomes thicker, less liquid and more solid.

If the oils in your margarine hadn’t been partially hydrogenated, you’d be pouring it instead of spreading it. But partial hydrogenation may fill in only about 20 percent of the missing hydrogen atoms in the molecules. If your margarine were 100 percent hydrogenated, it would be like trying to spread candle wax on your toast.

Unfortunately, saturated fats are less healthful than unsaturated fats.

Food manufacturers therefore walk a tightrope between minimum hydrogenation for health and enough hydrogenation to produce desirable textures.

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Filed Under: Food

About Karen Hill

Karen Hill is a freelance writer, editor, and columnist. Born in New York, her work has appeared in the Examiner, Yahoo News, Buzzfeed, among others.

Previous Post: « What Makes Fats Turn Rancid?
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