Guide
Why is non-alcoholic wine so sweet?
Ethanol was doing structural work. When it leaves, the same sugar reads louder, and some producers put sugar back on purpose.
Sweetness is the complaint people bring back from the first bottle. It is not always a flaw in the grape. It is often what is left when ethanol is gone.
Alcohol was hiding the sugar
Ethanol carries aroma and it gives wine weight. It also keeps residual sugar from tasting as naked as it does in juice. Take the ethanol out and the sugar that was already in the wine steps forward. A Riesling that was off-dry at full strength can taste frankly sweet at 0.0% even if nobody added a gram.
Some producers put weight back with sugar
Vacuum distillation and spinning-cone work can thin the body. Residual sugar, grape concentrate, or a dosage is a common way to put that weight back. That is a choice, not a law of the category. When a producer publishes the sugar, we print it. When they do not, we do not invent a gram count. How alcohol is removed from wine.
Acid is the counterweight
The dealcoholized wines that still taste like wine usually have enough acidity or bitterness to hold the sugar. Without that, the bottle tastes like finished juice. How to buy dealcoholized wine.