Addition of dry sugar such as beet sugar (crystal sugar) or sucrose to grapes, grape must, partially fermented grape must or young wine for the purpose of increasing alcohol. A sugar dissolver (container with homogenizer) is used for this purpose. The official term for dry sugaring is enrichment, and in some countries also chaptalisation. In contrast, the addition of sugar to the finished wine in order to increase the residual sugar content; see under Sweetening.
Complete lists of the numerous vinification measures and cellar techniques, as well as the types of wine, sparkling wine and distillate regulated by wine law are included under the heading "Vinification". Comprehensive information on wine law can be found under the keyword wine law.
For me, Lexicon from wein.plus is the most comprehensive and best source of information about wine currently available.Egon Mark
Diplom-Sommelier, Weinakademiker und Weinberater, Volders (Österreich)