What is rum?
Rum is a spirit made by fermenting and distilling sugarcane molasses or sugarcane juice, then usually aging it in barrels. It originated in the West Indies, with the first written mentions around 1650 in Barbados, where it was called "kill-devil" before the name rum stuck. Today rum is produced in nearly every major sugar-producing region of the world, though the Caribbean remains its spiritual home.
What is rum made from?
Most rum is made from molasses, the thick dark syrup left over after sugar is crystallised out of cane juice. At the sugar mill, cane juice is boiled and spun to extract sugar crystals, and the remaining liquid is the molasses used for rum. A smaller share of rum is made directly from fresh sugarcane juice instead. One firm rule applies everywhere: a spirit distilled from any other sugar source, such as sugar beet, cannot be called rum. Sugarcane is the bedrock requirement.
How is rum made?
Four steps: ferment, distil, age, blend. Yeast and water are added to molasses or cane juice, and the yeast converts the sugars into alcohol, producing a beer-strength wash of roughly 5-10% ABV. That wash is distilled, in pot stills for richer rums or column stills for lighter ones. The clear spirit is then usually aged in oak barrels and blended before bottling. We cover the full process step by step in our guide to how rum is made.
What's the difference between white, dark, and spiced rum?
The main differences are aging and additions. White rum is typically aged briefly or not at all, then filtered to stay clear, giving a light, clean spirit ideal for cocktails. Dark rum spends longer in oak barrels, picking up a golden colour and deeper flavour from the wood, often deepened further with caramel. Spiced rum starts as a base rum infused with spices like vanilla, cinnamon, and clove. As a rule: white for mixing, dark for sipping and richer drinks, spiced for sweeter serves.
What is rhum agricole?
Rhum agricole is rum distilled from fresh sugarcane juice rather than molasses. It is most associated with the French Caribbean islands, particularly Martinique. Because the juice ferments within hours of harvest, agricole rums carry the terroir of the cane fields around the distillery, with a grassier, earthier character than molasses rum. It is a niche style, but one worth trying if you enjoy the vegetal side of spirits.
What's the difference between rum and whiskey?
The base ingredient. Rum is distilled from sugarcane products, while whiskey is distilled from fermented grains such as barley, corn, rye, and wheat. Both are typically barrel-aged, which is why aged rums and whiskeys can share notes of vanilla, caramel, and oak. But the sugarcane base gives rum a naturally rounder, sweeter-leaning profile, while grain gives whiskey its cereal backbone.
Does rum go bad?
Unopened, no. Spirits above 40% ABV do not expire, and properly stored sealed bottles can stay comparatively fresh even 10 years after release. Once opened, air slowly dulls the flavour, so an open bottle is best finished within six months to two years. Keep it tightly sealed, upright, and in a cool, dark cupboard away from sunlight and heat. Illegaltenderrumco
Does rum age in the bottle?
No. Anything that has been distilled stops aging once it has been bottled. All of rum's maturation happens in the barrel, so a 10-year-old rum stays a 10-year-old rum no matter how long the bottle sits on your shelf. This is the big difference from wine, which continues to evolve after bottling.
What ABV is rum?
Standard rum is bottled at 37.5-40% ABV in the UK. Overproof rums run far higher, and the old navy-strength benchmark of around 57% comes from sailors proving their ration was undiluted: rum-soaked gunpowder would still ignite at that strength. At the other end of the scale, rum-based ready-to-drink cocktails sit much lower. Satchmo cans are 16% ABV, strong enough to lead the pack among the strongest canned cocktails in the UK while staying sessionable.
Why is rum linked to pirates and the navy?
Because for over three centuries, rum was the official daily drink of sailors. The Royal Navy issued a daily rum ration, called the tot, until it was abolished in Britain on Black Tot Day in 1970 over concerns about alcohol and modern machinery. Clean water spoiled quickly on long voyages, while rum kept indefinitely in the cask, making it the practical choice at sea. Pirates operating in the rum-producing Caribbean simply drank what was plentiful, and the association stuck in books and films ever after. On the final day, sailors wore black armbands and tots were "buried at sea" in mock funerals.
What does "grog" mean?
Grog is rum diluted with water, and the name comes from an admiral's coat. In 1740, Admiral Edward Vernon, known as Old Grog because of his habitual grogram cloak, introduced the practice of compulsorily diluting the navy's rum with water to curb drunkenness. Lime juice was often added, which helped fight scurvy and gave British sailors the nickname "limeys." The word survives today, along with "groggy" for the morning after.
What are the best mixers for rum?
Cola, ginger beer, soda water, fresh lime, and pineapple juice are the classics. Cola with a fresh lime squeeze makes a Cuba Libre, ginger beer builds a Dark and Stormy, and soda keeps things light. Fresh lime is the one non-negotiable: it brightens almost every rum drink. For ratios, techniques, and three easy rum recipes, see our guide to mixing drinks like a bartender.
What's the best rum for cocktails?
White rum for most of them. Its light, clean profile is the standard base for cocktails like the Mojito and Daiquiri, letting citrus and sugar shine without heaviness. Dark and aged rums work better in stirred, spirit-forward drinks or richer serves where their oak and caramel notes can lead. If you are stocking up for guests, our house party drinks guide covers what to serve and when.
What's the best way to drink rum?
However you enjoy it, but a good rule: sip aged rum, mix light rum. Long-aged rums reward drinking neat or over a single large ice cube, like a whisky. White and lightly aged rums come alive in cocktails. The third route is pre-mixed: a well-made canned rum cocktail delivers the finished drink with zero prep, and we have broken down how they compare in RTD cocktails vs bar-made.
Can you get real rum in a canned cocktail?
Yes, if you pick the right can. Quality RTDs use genuine distilled rum rather than neutral alcohol with flavourings, so check the ingredients before you buy. Satchmo cans are built on authentic Caribbean rum with fruit-led flavour at a bold 16% ABV, and we list what goes into every Satchmo can openly. Real rum, real strength, no shaker required. If you want to taste the difference, start with a Satchmo mixed pack.