Is Propylene Glycol in Food Safe?

Quick Answer: Propylene glycol is FDA-approved as a food additive and is found in ice cream, salad dressings, frosting, and flavored drinks. It is also used in antifreeze, e-cigarettes, and cosmetics. The FDA considers food-grade propylene glycol safe, though it differs from the industrial-grade version used in antifreeze.

Propylene glycol (PG) is a synthetic compound used as a humectant, solvent, and preservative in processed foods. It keeps food moist, dissolves flavors, and prevents freezer burn. It's commonly found in cake mixes, ice cream, salad dressings, flavored coffees, soft drinks, and many pre-packaged snacks. While propylene glycol is an ingredient in some antifreeze products, the food-grade version (USP/FCC grade) is distinct from industrial-grade ethylene glycol (which is toxic). The FDA classifies food-grade PG as GRAS at levels up to 50g/kg of food. The EU permits it as E1520 with a maximum daily intake of 25mg/kg body weight. Excessive intake (extremely rare from food) could cause lactic acidosis in susceptible individuals. For most people, the amounts found in food pose no health risk.

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Frequently Asked Questions

Is the propylene glycol in food the same as antifreeze?

Food-grade propylene glycol is chemically the same compound but is a different grade (USP/FCC purity). The toxic antifreeze chemical is ethylene glycol, a different substance.

What foods contain propylene glycol?

Ice cream, cake mixes, salad dressings, flavored coffees, soft drinks, frosting, and many processed foods use propylene glycol as a humectant and solvent.

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APACheckIt AI. (2026). "Is Propylene Glycol in Food Safe? — CheckIt AI". Climaverse PBC. Retrieved from https://getcheck.it/answers/is-propylene-glycol-in-food-safe
MLA"Is Propylene Glycol in Food Safe? — CheckIt AI." CheckIt AI, Climaverse PBC, 2026-03-05. https://getcheck.it/answers/is-propylene-glycol-in-food-safe.
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BibTeX@misc{checkit2026answersispropyleneglycolinfoodsafe, title = {Is Propylene Glycol in Food Safe? — CheckIt AI}, author = {CheckIt AI}, year = {2026}, publisher = {Climaverse PBC}, url = {https://getcheck.it/answers/is-propylene-glycol-in-food-safe}, note = {Retrieved 2026-03-05} }