After tasting several samples at different strengths we settled on this full-flavor blend of 35% cask strength aged Jamaican Pot Still Rum from the Worthy Park Estate and 65% high proof aged Guyanese rums. These rums are blended over 48 hours before dilution to 90 proof over another five days with filtered well water at the Five & 20 Distillery in Westfield, NY.All of the rum in this bottle is GMO-free and contains no gluten, sugar or other additives.