
Martinique molasses rhum is a rum distilled from molasses rather than fresh cane juice, made on Martinique.
Molasses rum with island character, so another molasses rum of similar age sits closest. Cane-juice spirits match the strength and arrive grassy, which is a different drink rather than a substitution.
Rhum agricole
Agricole is distilled from fresh-pressed cane juice; this rum is made from molasses, the by-product of sugar refining. Agricole is grassy and sharp, the molasses one rounder and sweeter, so a Ti' Punch swaps its whole character with the bottle.
Molasses rhum is sturdier than its agricole neighbor — the aromatics are less volatile and there is nothing to spoil at 40%. Ordinary shelf care is enough. The only real enemy is sunlight on the bottle, which will dull the color over a season.