Springbank distillery is one of the last surviving producers of Campbeltown Single Malts. The distillery, located on the southern Kintyre peninsula, produces three distinct types of single malt Scotch whisky.
Springbank Single Malt is the most popular variety. Its standard bottling is a 10-year-old, distilled two and a half times, and is not chill-filtered, nor does it have colour added. Distilling whisky two and a half times is quite unusual, as it means that during the distillation process some of the low wines are collected before the second distillation, and then mixed back into the feints for another distillation. This means that some parts of the spirit have been through distillation twice and some parts three times. The spirit is then aged in ex-bourbon and ex-sherry casks, although Springbank is experimenting with rum casks as well. The standard 10-year-old bottling is available at 46% volume. They also produce a somewhat darker 15-year-old and an 18-year-old. A 21-year-old variety of Springbank exists, but is increasingly rare. (From Wikipedia)