Five Generations Of Grants Have Stood Together Through Thick And Thin To Hold The Title Of Scotland’s Oldest Continuously Family-run, Blended Whisky Makers. Grant’s Family Reserve is one of the world’s best loved Scotch whiskies. The reserve is vacuum distilled at a lower temperature to make it a lighter and more delicate spirit, it is then aged in oak to give it a deeper, sweeter, soft fruit flavour, creating the perfect foundation.