IT'S NOT JUST THE FLAVOURS YOU TASTE. IT'S THE FLAVOURS YOU DON'T TASTE As rum is made, flavour notes may develop that are dominant and unwanted. So Don Facundo Bacardí Massó created a filtration process with a secret mix of charcoals made from tropical woods and coconut shells. These natural filters removed only the rogue notes allowing a whole new world of subtler, more elegant flavours to shine through. This secret combination of charcoals is still used today and known only to the Maestros de Ron BACARDÍ.