Climate and location
To find out where wine can be made, just look at a globe: the ideal climatic conditions for cultivating grapes are found between 30 and 50 degrees latitude both north and south of the equator. The warmer the region, the earlier the vines awaken from their winter sleep and begin to grow. Grape ripeness and harvest time also shift correspondingly: in warmer climes, such as southern Italy, the harvest usually begins earlier. Sunlight, rainfall and dry spells are determining factors, especially in the last ripening phase. The winemaker must constantly observe his vineyards to determine the perfect moment for harvest. But when is the perfect moment? When the grapes have a fully developed aroma and demonstrate sufficient sugar and acidity. The latter is important to ensure the wine doesn’t turn out flat. When choosing where to plant his vines, the winemaker must base his decision on, among other things, sunlight. If there is water nearby, the vines will also benefit from the warmth caused by the reflection off the water’s surface. Wind also plays an important role: it dries the morning dew off the grape skins and regulates the vineyard temperature in summer.
Grape varieties
When choosing grape varieties for his vineyard, the winemaker must consider various factors, such as regional climate conditions, the site’s soil quality, as well as the grape’s requirements. Indigenous grape varieties are native and are almost exclusively found in a specific region. For example, Cannonau and Vermentino come from Sardinia, Teroldego from Trentino and Barbera from Piedmont. Grape variety strongly influences the aroma of the wine. Correspondingly, the winemaker must think ahead and carefully make his choice – no mean feat!
Soil
The soil gives the vines life. It provides water and important nutrients. Vines require deep roots for resilience. That’s why the winemaker must be very deliberate when watering his vines. Dry and rather barren soils with low nutrient levels produce great wines – vegetables and grains would be unable to flourish in such soils. Some important soil types in viticulture are calcareous, gravel, limestone, loam, volcanic and slate. Grapes grown on a suitable soil can produce an excellent wine!
Winemaking and ageing – vinification
Vinification is the core competency of a winemaker. As long as he complies with regulatory standards, he is free to organise his work in the vineyard and cellar as he wishes. During vinification, the oenologist can harness his knowledge and experience to alter the wine as much or as little as he likes and give it its own style.
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