Opthimus rum, produced by the family-run company Oliver y Oliver from Cuba, is made from molasses and matures for an average of 15 years using the Solera method. In this traditional process, which is also used for sherry, the rum passes through various rows of barrels, with the distillate moving from the upper, younger rows to the lower, older rows.

The quantity removed from the bottom row is always replaced with younger rum to ensure continuous refinement. After this maturation phase, the rum is also aged in former malt whisky barrels, which gives it additional complexity.

In addition to Opthimus, Oliver y Oliver also produces other renowned brands such as Cubaney, Quorhum, Presidente Marti, Puntacana and Unhiq. The rums used for blending come predominantly from Panama and Trinidad and Tobago, which contributes to the versatility and characteristic profile of their products.