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The photosynthesis of the vine is optimally produced between 25 and 35 degrees. This is the process where the leaf receives the sun's rays to transform them into chemical energy, generating sugars and carbohydrates that sends to clusters, trunk and roots.
In addition, by means of the same leaves perspiration occurs, where the plant loses water by evaporation to regulate its temperature. All this is produced in perfect balance. But what can happen if the temperature is placed above 35 degrees? What would happen would be what is called “ heat stroke ”, disrupting the normal operation of the plant .
With heat stroke, the breathing of the plant increases and photosynthesis decreases. And in doing so, there is a decline in the production of sugars. The vine enters stress and directs the available sugars to the trunk and roots, not to the ripening clusters, which stop their growth, are smaller and weigh less. The effect on the harvest, can be very serious.
Salta is crossed by the Tropic of Capricorn. In these areas, due to the high and constant temperatures, no wines are made. However, as you ascend, the temperature drops at the rate of one degree centigrade every 180 meters. The Calchaquíes Valleys are about 2,000 meters high, a situation that makes the latitude compensated by the height.
On the one hand, the height generates extraordinary thermal differentials which is an ideal condition for the maturity of tannins in wines . On the other hand, the great sunstroke generates greater dye intensities and, coupled with the environmental dryness, slightly dehydrates the grains of the vine, causing an effect of concentration of substances in the grape grain, and returning the wines concentrated and full-bodied.
Thanks to the soil qualities and unique climatic conditions, Salta wines have notes of ripe fruits, jams and certain spicy aromas. Alcoholic graduations tend to be high (14 degrees), since the correct maturity of the grapes is awaited. They are thick and fleshy wines with great explosion in the mouth.
Bodega Etchart was founded in 1850, in Cafayate . There are five wine lines and among them, the Cafayate Reserva stands out.
Its Syrah is an elegant style wine with a balanced concentration and unctuosity that combines mineral notes, leather and ripe fruits, with a prolonged persistence of taste in the mouth. It is powerful and complex, its passage through oak gives it notes of coffee and chocolate .
It accompanies very well spicy meats, lamb or chivito grill, hard or semi-hard cheeses . It is special for stews , and well seasoned and spicy hot meals.
A wine in which height, geographical arrangement and temperature, manage to express the best attributes of the Calchaquíes Valleys.
Publication Date: 06/10/2019
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