Brazilian 'Double Pruning' Technique Revolutionizes Winter Grape Harvest for Award-Winning Wines

A pioneering technique known as 'dupla poda' (double pruning), developed in Minas Gerais, Brazil, has transformed the nation's winemaking industry by enabling grape harvests during the winter months. This innovation, conceived in the late 1990s by agronomist Murilo de Albuquerque Regina, inverts the natural cycle of grapevines. The method allows grapes to mature between May and August, avoiding the summer rains and capitalizing on cooler, sunny days and cold nights, conditions ideal for producing high-quality fine wines. Initially tested in Três Corações, Minas Gerais, in the early 2000s, the technique yielded excellent results, with grapes showing reduced size and increased sugar and tannin concentration. The success of double pruning has led to the expansion of winter grape cultivation across Minas Gerais and into São Paulo, Rio de Janeiro, and even parts of the Center-West and Northeast regions of Brazil. Currently, over 500 hectares of vineyards utilize this method, according to the National Association of Winter Wine Producers. Winemaker and viticulturist Isabela Peregrino, a collaborator with Regina, highlights that the technique optimizes the three key factors for quality grapes: dry weather, sunny days, and cold nights. This has allowed wines produced in regions like Poços de Caldas, Minas Gerais, and interior São Paulo to gain international recognition and awards, with some labels achieving scores as high as 92 points in specialized evaluations. The growing demand for these winter wines is evident in local markets, where specialized stores report a consistent increase in sales, with around 60 winter wine labels available alongside over 1,200 international varieties. This agricultural shift has also provided a complementary income source for some farms, particularly in Southern Minas Gerais, where grape cultivation now coexists with traditional coffee farming.