Glycerol
What it is
A natural fermentation by-product, glycerol (glycerine) adds viscosity and a sense of body. It is not ethanol: it does not intoxicate and it does not count as alcoholic strength. In dealcoholised wines, removing alcohol also removes much of the “weight” ethanol gave on the palate. That is why glycerol (what was already there and, sometimes, what is adjusted afterwards within permitted oenological practice) enters the texture-rebuild conversation.
Glycerol and mouthfeel
Mouthfeel is the tactile impression: weight, smoothness, astringency, texture. Glycerol is one piece of that puzzle in alcohol-removed wine, not the only one (polysaccharides, tannins, CO₂, residual sugar and more also count). A “watery” wine after dealcoholisation usually signals missing structure, not a labelling fault.
After vacuum or membrane work
After vacuum or membrane work, tasters and makers ask whether the wine regains length and density without turning cloying. Glycerol helps explain that rebuild without confusing it with “putting alcohol back”. Related: ethanol, methods at Methods.
Label / EU note
There is no mandatory glycerol mention on dealcoholised wine labels. Shelf claims speak about alcohol (alcohol-free / 0.0%), not texture. Any adjustment must follow applicable oenological rules; this entry is not a recipe or a dose guide.