Who made it
château, domaine, estate, winery.
The producer name is usually the largest text on the label — and the most important piece of information on it. A producer's reputation is built over decades. Knowing the name tells you whether you're dealing with a small family grower making 5,000 bottles a year or a large négociant producing millions.
In France, look for "Château" (Bordeaux), "Domaine" (Burgundy, Rhône), or "Maison" (a merchant house). In Italy, "Cantina" or "Tenuta". In Spain, "Bodega". In the New World, the winery or estate name typically stands alone. When in doubt about a producer, Sommvi can look them up from the label instantly.
Rule of thumb: The producer name is the single most reliable predictor of wine quality.