Designation for grapes of those grape varieties that are used to make wine. It is derived from pressing. Within the EU, cultivation is bound to the quantities of vineyards for wine production specified in the vine cadastre. Only those grape varieties may be planted for wine production that have been classified as such by the wine-producing countries - in Austria, federal states. The varieties intended for consumption are called table grapes (also eating grapes), which are often also used for the production of sultanas. Compared to these, wine grapes have smaller and seed-rich berries, as well as usually a higher content of acids (especially white wine grapes) and tannins or tannins (especially red wine grapes). Both groups of substances are important for the production of higher quality wines. See also a complete list of all grape variety-specific terms under the keyword grapevine.