The wine harvest is about timing. The time it takes for a grape to ripen to optimal sweetness, the moment they are cut from the vine, the days or weeks that each mix of crushed grapes and juice sits in fermentation tanks or oak barrels. Timing is everything and to get it right, you not only have to be obsessed with accuracy, but also have a passion for perfection. Alejandra Cordero, the winemaker at Tres Raices, a winery in Dolores Hildago, located in the central Mexican state of Guanajuato, has both. Wearing a black lab coat, her hair in a tight bun and her hands stained ruddy red with wine, Cordero is testing the sugar levels of the latest batch of Tres Raices wine. This year’s harvest went fast. There was little summer rain and the grapes matured quickly. They started cutting in July and were finished by the start of September. Timing was vital.