This 25-year-old Macallan 1998 Speymalt came from a single refill sherry hogshead cask 21603908 that yielded 322 bottles at its very promising natural cask strength of 52.8%. Considering that this goes for around a fifth of the price of the official Macallan 25-year-old Sherry Cask (which is bottled at 43%) this 1998 Macallan Speymalt 25-year-old must be one of the best value aged Macallans on the market.