Sweetness of wine Czech Republic and Slovakia, the Normalizovaný Moštoměr (°NM) scale is used. The scale measures kg of sugar in 100 l of must. ČSN and STN 257621 – 1.3.1987 In France, the Baumé scale is occasionally used. Sélection de Grains Nobles (SGN) is French for "selection of noble berries" and refers to wines made from grapes affected by noble rot. SGN wines are sweet dessert wines with rich, concentrated flavours. Alsace wines were the first to be described as "Sélection de Grains Nobles", with the legal definition introduced in 1984. The term is also used in some other wine regions of
Phenolic content in wine increase during ripening so does the concentration of anthocyanins. In most grapes anthocyanins are found only in the outer cell layers of the skin, leaving the grape juice inside virtually colorless. Therefore, to get color pigmentation in the wine, the fermenting must needs to be in contact with the grape skins in order for the anthocyanins to be extracted. Hence, white wine can be made from red wine grapes in the same way that many white sparkling wines are made from the red wine grapes of Pinot noir and Pinot Meunier. The exception to this is the small class of