Saint-Romain Blanc, Clos du Château, Domaine Coste-Caumartin (Burgundy), 2022

This indicator represents the perceived style from the driest to the sweetest.  Sometimes two wines can have the same quantity of residual sugar but taste differently according to the grape used.  “A” is the driest like a Muscadet and “E” the sweetest like a Sauternes.