The Port Cask Matured limited edition was aged for the full term of its maturation in ruby port hogsheads. Casks were selected from two contrasting ages, the youngest being 6 years old.

The 2024 edition will be the third release of a Kilchoman Port Cask Matured limited edition. The first release in 2014, was matured for three years in fresh port casks. The second edition, released in 2018, was a combination of three and four year old casks. This, the 2024 edition, was matured in refill casks used for both of the previous two releases.