For our entry on white rum, we are using the most well known brand – Bacardi Carta Blanca. As with many rum brands, molasses are used as the base product are transformed into alcohol through spontaneous (natural) fermentation. In the recipe for Bacardi, purified water and yeast are then added producing a “mash” which is then fermented for a further 30-35 hours in carefully controlled conditions. The fermented mash is then distilled. Distilling involves the heating the fermented mash and repeatedly passing it through copper and stainless steel stills to remove the smallest impurities. Bacardi is then charcoal filtered to rigorously control the purity before ageing begins. Bacardi is aged in white oak casks which are monitored closely. After ageing to develop the flavour, the liquid then undergoes a finishing process known as charcoal mellowing leaving the rum clear and colourless or as they can now refer to it “white rum”. Perfect for cocktails! The ABV of white rum can vary from between 37.5 to 50% ABV. Bacardi Carta Blanca is 37.5% ABV.