What Is Rum?

Rum is a distilled spirit made from sugarcane or its byproducts—primarily molasses or fresh sugarcane juice. According to the U.S. Alcohol and Tobacco Tax and Trade Bureau (TTB), rum must be distilled from "the fermented juice of sugar cane, sugar cane syrup, sugar cane molasses or other sugar cane by-products at less than 95% alcohol by volume." The European Union's Regulation 2019/787 similarly defines rum as a spirit produced exclusively from sugarcane-derived materials.

The spirit's defining characteristic is its sugarcane origin, which distinguishes it from grain-based spirits like whiskey or potato-based vodka. This connection to sugarcane ties rum production to tropical and subtropical regions where the crop thrives—the Caribbean, Central and South America, and parts of Asia and the Pacific.

Two Production Paths

Rum production follows two distinct traditions:

• Molasses-based rum (sometimes called "industrial" or "traditional" rum) uses molasses, the thick, dark syrup left after sugar crystals are extracted from cane juice. This method dominates global production and is typical of English- and Spanish-speaking Caribbean islands.

• Rhum agricole (agricultural rum) is distilled directly from fresh, fermented sugarcane juice rather than molasses. This style is protected by French Appellation d'Origine Contrôlée (AOC) regulations in Martinique, which specify production methods, geographical boundaries, and quality standards. Rhum agricole typically exhibits grassier, more vegetal flavors compared to molasses rum.

Geographic Diversity and Protection

Rum's identity is deeply regional. Beyond Martinique's AOC Rhum Agricole, other protected designations include Jamaica's geographical indication for Jamaican Rum and Barbados's GI for Barbados Rum. As *The Oxford Companion to Spirits and Cocktails* notes, these protections preserve traditional methods and regional character in an increasingly globalized market.

According to *Difford's Guide*, rum is produced in over 80 countries, each bringing unique fermentation techniques, still types, aging conditions, and blending traditions. This diversity makes rum one of the most varied spirit categories—from light, clean Puerto Rican rums to funky, ester-rich Jamaican styles to grassy Martinique agricoles.

Understanding rum begins with recognizing its sugarcane soul and the two production philosophies that shape its character.