Fermentation is a natural process of slowly converting the sugar contained in the fruit to ethanol. Contact between the juice and the skin is essential for both colour extraction and aroma. Bodegas Muga has four fermentation rooms containing 90 wooden casks –their capacities ranging from three thousand to fifteen thousand kilos. Thanks to this broad range, Bodegas Muga can make different wines depending on the fruit quality and the vineyards they come from.