To produce the Ribeiro Blanco Alter each vineyard plot and variety were fermented separately in temperature-controlled stainless steel tanks, the cool ferment retaining the aromatic intensity of the grapes. Following fermentation, the wine was aged on its lees for three to four months to add depth before the final blend was assembled.
Alter has 26 hectares of its own vineyards, which are divided into 168 small plots planted with native white varieties: Treixadura, Godello and Loureira. The vines are on average 15-30 years old, planted on decomposed granite with sand and clay. The vineyards benefit from a perfect mesoclimate with good diurnal ranges particularly during the growing season ensuring the fruit is able to fully ripen while retaining fresh acidity. All harvesting is done by hand, plot by plot at the perfect moment to ensure optimum level of ripeness which elongates their harvest.
Alter was founded by José Pérez Pousa on the banks of the Miño river in 2014, with the wish to preserve the tradition of their native land, where wine has been produced since the 2nd century BC. Alter has 24 hectares of its own vineyards, which are on average 15 to 30 years old and are planted on decomposed granite, with sand and clay. 90% of the production is from the native white varieties Treixadura, Godello and Loureira, with the rest from the native red varieties Brancellao and Sousón. The climate in Ribeiro is influenced by the Atlantic but also sheltered by the mountains. The region benefits from warm days and cool nights during the growing season, which allows the grapes to ripen fully while retaining their signature fresh acidity.