Significant influence on the quality of wine have the vine, the climate, the vintage, the ground, the physiological maturity the grapes in the vintage and the art of the winemaker, as well as those of the bottle aging or. aging of the wine's metabolism processes. For high quality wines, the amounts give the ingredients an optimal, balanced Ratio, whereby in particular the portion of acids. sugar. alcohol and flavorings plays a big role (see under total extract ). Using the new analysis method metabolomics Around 7,000 different substances have been identified in the wine. But not only the ingredients present in a wine, but also the quality and the ancestry as well as any manipulations or wine adulteration be determined.
The wine quality grades and designations valid within the EU are under quality system described. All aids, works and measures in the vineyard during the growth cycle one finds below Weingarten Care, Complete listings of the numerous cellar techniques, as well as a list of the wine-regulated wine, sparkling wine and distillate types are under the keyword winemaking contain. Comprehensive information on wine law is available under the keyword wine law,