Triacetin
The short version
Glycerol triacetate — a flavor solvent and the standard humectant in chewing gum.
It's widely considered safe at the amounts used in food, so we mark it green. The Safety section below has the details.
Where it comes from
Manufactured by esterifying glycerol (E422) with acetic acid (E260) or acetic anhydride. A natural minor component of butter and many fermented foods.
How it's used
The standard humectant in chewing gum (keeps the gum base pliable), a flavor and color concentrate carrier solvent, and a plasticizer in pharmaceutical and food coatings. Slowly hydrolyzes in storage to release acetic acid — used at low levels to avoid sour notes.
Safety profile
ADI not specified — considered safe (EFSA 2018 re-evaluation). Hydrolyzed in digestion to glycerol and acetic acid, both normal dietary components.
Physical & chemical properties
Colorless, slightly viscous liquid with a slight fatty odor. Miscible with most organic solvents; modest water solubility (~6%).
Regulation worldwide
Permitted globally with maximum-use limits per category.
Educational information only. Not medical or dietary advice.