Sparkling

A bottle that says only sparkling wine is not hiding anything; those words are the legal category itself, and that category is set by how the wine was made and by the pressure in the bottle. Look at the back, where the method is usually declared in small print. Phrases like fermented in this bottle or traditional method mean a second fermentation took place inside the glass you are holding. Tank method or Charmat means a pressurised vessel did the work instead. Carbonated means gas was added to a finished still wine, and silence usually points to the last of those.

Gas injected into a still wine dissolves less evenly, so the bubbles arrive larger, foam hard in the glass and then vanish within a minute or two. A second fermentation dissolves carbon dioxide into the wine gradually and under pressure, which produces a finer and more persistent bead that keeps rising in a steady thread. It is the clearest sensory difference between the two approaches, and it shows before you taste anything. Pour both side by side and the gap is obvious.

Carrying no regional name says nothing about how a wine was made. Traditional-method wine is produced in plenty of regions that never registered a name for it, and serious bottles go without one by choice rather than by failure to qualify. The method, the grape and the sweetness term on the label will tell you far more than the absence of a regional name ever could. Read the back before assuming anything from the front.

Often it is the glass rather than the wine. Bubbles form on tiny fibres and particles left on the glass, which is why a rinsed, air-dried glass behaves differently from a freshly polished one. Warm wine also loses its gas faster.

A dry tank-method or carbonated wine is the sensible choice, because the mixer brings its own sweetness and a demi-sec bottle on top of juice turns cloying. Keep the traditional-method bottles for drinking on their own, where the lees character is the point. Anything going into a mix wants acid, not complexity.

No. Sweetness is a stylistic decision taken at the dosage stage, not a sign of poor fruit. Demi-sec and doux styles exist because they work alongside dessert and against rich, salty food. What matters is balance: enough acid underneath the sugar to stop the wine tasting flat.