Over the decades, the various Ballantine's blends have soaked up much of the production at Dumbarton and will continue to rely on the vast stocks of Dumbarton grain for years to come. We are, therefore, including a selection of the Ballantine's whiskies as part of our Dumbarton/inverleven collection for those who cannot acces them in their home markets. There are only limited stocks available of the 30 years old, which has been aged in oak casks for a minimum of thirty years. Ballantine's 30 years old is considered to be one of the oldest and also one of the most expensive blends available.