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Rum is a sugarcane spirit, and almost everything else is a choice
Rum is the spirit of sugarcane. The cane juice, or the molasses left once its sugar has been refined out, is fermented with yeast, distilled, and then bottled clear or aged in oak. The law fixes the raw material, a minimum strength and a ban on flavouring. Almost everything else is the producer’s choice, which is why one rum is a clean white spirit and the next a heavy blend aged for decades.
Rum at a glance; the legal rows from Regulation (EC) No 110/2008 (UK), Regulation (EU) 2019/787 (EU) and 27 CFR 5.147 (US)
Raw material
- Answer
- Sugarcane only: molasses for most rum, fresh cane juice for rhum agricole, or cane syrup
Fermentation
- Answer
- Yeast, for a day or so up to several weeks; longer ferments build more fruit
Still
- Answer
- Column for lighter rum, pot for heavier rum; many blends use both
Distillation strength
- Answer
- Below 96% ABV, so the spirit keeps the character of the cane
Ageing
- Answer
- No legal minimum. White rum may never see a cask; aged rum spends years in oak, often ex-bourbon
Minimum strength
- Answer
- 37.5% ABV in the UK and EU, 40% ABV in the United States
What may be added
- Answer
- Water, and caramel for colour. No flavouring. The EU caps sweetening at 20 grams a litre
Main styles
- Answer
- White, gold, dark, aged, navy, overproof and rhum agricole; spiced rum is legally a spirit drink
Where it is made
- Answer
- The Caribbean first, and now Latin America, India, the United States, Australia and Europe
| Question | Answer |
|---|---|
| Raw material | Sugarcane only: molasses for most rum, fresh cane juice for rhum agricole, or cane syrup |
| Fermentation | Yeast, for a day or so up to several weeks; longer ferments build more fruit |
| Still | Column for lighter rum, pot for heavier rum; many blends use both |
| Distillation strength | Below 96% ABV, so the spirit keeps the character of the cane |
| Ageing | No legal minimum. White rum may never see a cask; aged rum spends years in oak, often ex-bourbon |
| Minimum strength | 37.5% ABV in the UK and EU, 40% ABV in the United States |
| What may be added | Water, and caramel for colour. No flavouring. The EU caps sweetening at 20 grams a litre |
| Main styles | White, gold, dark, aged, navy, overproof and rhum agricole; spiced rum is legally a spirit drink |
| Where it is made | The Caribbean first, and now Latin America, India, the United States, Australia and Europe |
The flavour of each style is set out in what does rum taste like, the label rules in how to read a rum label, and the English, French and Spanish traditions in rum, rhum or ron.
UK law defines rum by its cane, its strength and what may be added
In Great Britain the legal definition of rum is Regulation (EC) No 110/2008, Annex II, category 1, as retained in UK law. Rum must be made only by fermenting and distilling sugarcane products: molasses or syrup from making cane sugar, or the cane juice itself. It must be distilled below 96% ABV, so the spirit keeps the character of rum, and bottled at 37.5% ABV or more.
Three rules govern what goes in after distillation. No alcohol may be added. Rum may not be flavoured. Caramel may be added only to adjust the colour. The law sets no minimum age, so a bottle labelled rum can hold a spirit a few weeks old or a blend aged for decades.
Flavour a rum and it leaves the category. A spiced rum’s legal name in the UK is spirit drink, with spiced rum allowed alongside it, and what is spiced rum covers what that means in the glass. Sweetening is where the rules part. The EU’s current regulation, 2019/787, caps it at 20 grams a litre. The British text names no limit.
Some places go further. The United States sets its minimum bottling strength at 40% ABV. Martinique’s rhum agricole has had its own appellation since 1996, and Jamaica protects its rum with a geographical indication, registered in 2016 by The Fat Rum Pirate’s account, a secondary source. Only cane-juice rum from the French overseas departments or Madeira may be sold as agricultural rum. How to read a rum label shows what these rules make a label say, and what they let a producer leave out.
Rum is made from molasses, cane juice or cane syrup
Most rum is made from molasses, the dark syrup left once sugar crystals have been boiled and spun out of cane juice. It keeps, it travels and it is cheap, so molasses rum can be distilled a long way from the cane fields. Blackstrap rum is built on the last and darkest grade.
Fresh cane juice spoils fast once the cane is cut, so it has to be fermented beside the fields. It is the raw material of rhum agricole and of Brazil’s cachaça, and it gives a greener spirit, of cut grass and cane sap. A few producers ferment cane syrup, juice boiled down so that it keeps, which sits between the two.
Six steps turn sugarcane into rum
How rum is made, step by step; what must be declared from Regulation (EU) No 1169/2011, Article 16, as retained in UK law
Cut and crush
- What happens
- The cane is cut and crushed for its juice, which spoils quickly
- What it changes in the glass
- Juice for rhum agricole has to be fermented beside the fields
Make the raw material
- What happens
- Most juice is boiled for sugar, and molasses is what remains; some is boiled to syrup
- What it changes in the glass
- Molasses gives brown sugar and caramel, juice gives grass and cane
Ferment
- What happens
- Water and yeast are added, and the wash ferments for a day or so up to several weeks
- What it changes in the glass
- Long ferments build esters, the fruit behind Jamaican funk
Distil
- What happens
- In a column still, a pot still or both, below 96% ABV
- What it changes in the glass
- Column rum is lighter and cleaner, pot rum heavier and fruitier
Age
- What happens
- In oak casks, most often ex-bourbon; tropical heat speeds it
- What it changes in the glass
- Vanilla, caramel, dried fruit and a drier finish
Blend and bottle
- What happens
- Casks are blended, cut with water to strength, sometimes coloured or sweetened
- What it changes in the glass
- Colour and sweetness, neither of which has to be declared
| Step | What happens | What it changes in the glass |
|---|---|---|
| Cut and crush | The cane is cut and crushed for its juice, which spoils quickly | Juice for rhum agricole has to be fermented beside the fields |
| Make the raw material | Most juice is boiled for sugar, and molasses is what remains; some is boiled to syrup | Molasses gives brown sugar and caramel, juice gives grass and cane |
| Ferment | Water and yeast are added, and the wash ferments for a day or so up to several weeks | Long ferments build esters, the fruit behind Jamaican funk |
| Distil | In a column still, a pot still or both, below 96% ABV | Column rum is lighter and cleaner, pot rum heavier and fruitier |
| Age | In oak casks, most often ex-bourbon; tropical heat speeds it | Vanilla, caramel, dried fruit and a drier finish |
| Blend and bottle | Casks are blended, cut with water to strength, sometimes coloured or sweetened | Colour and sweetness, neither of which has to be declared |
Long fermentation builds the fruit
Yeast turns the sugar into alcohol and, on the way, into esters, the compounds that smell of fruit. A ferment of a day or two gives a clean, light wash. One left for a week or more, as in the traditional Jamaican houses, builds the overripe banana and pineapple the trade calls funk. Some Jamaican distilleries add dunder, the residue of earlier distillations, to push it further.
The still sets the weight of the spirit
A column still runs continuously and gives a lighter, cleaner spirit. A pot still works in batches and keeps more oil and fruit. The same wash comes off a column light and dry, and off a pot still heavier and fruitier. Many houses blend both, and Barbados is known for it.
Tropical heat ages rum faster, and takes more of it
Most rum is aged in oak, very often in casks that held bourbon. Heat speeds the exchange with the wood. Class, a trade magazine, says a Caribbean warehouse can lose 8 to 10% or more of a cask a year to evaporation, against 1.5 to 2% in Scotland, so tropical-aged rum shows more oak than its age suggests and old tropical rum is scarce. Some producers ship young rum to Europe and age it slowly in cooler air.
Blending, water and caramel come last
Most rum is a blend of casks, and often of pot and column rum, made to a house style. It is cut with water to bottling strength and may be coloured with caramel. A solera rum is blended through a cascade of casks, and its number usually states the oldest rum in the system, not the youngest. Neither added caramel nor added sugar has to be declared on the label.
Rum began on Barbados in the 1640s, as kill-devil
Rum’s history is the history of Caribbean sugar, and of the enslaved Africans who were forced to grow and process it.
Sugar, slavery and the first rum
Richard Ligon, who lived on Barbados from 1647 to 1650, described planters distilling a strong spirit they called kill-devil from the skimmings of the coppers that boiled the sugar. His account, A True and Exact History of the Island of Barbados, was published in 1657.
The plantations ran on the labour of enslaved Africans, and rum became part of the trade that sustained them. It was shipped to Britain and North America, distilled in New England from Caribbean molasses, and traded on the African coast. Distilling spread with the cane to the French and Spanish islands and to every sugar colony.
The Royal Navy issued rum until 1970
Royal Museums Greenwich dates a daily rum ration in the Royal Navy from around 1655. In 1740 Admiral Edward Vernon ordered his men’s rum diluted with water and lemon juice, and the mix took his nickname, grog. The last tot was poured on 31 July 1970, Black Tot Day.
Hansard’s record of the Commons debate of 28 January 1970 gives the tot as one eighth of a pint of rum, mixed with two parts of water. Black Tot Day tells the story of the ration in full.
Rum is now made far beyond the Caribbean
The Caribbean is still rum’s home. The Caribbean rum houses include Foursquare and Mount Gay on Barbados, Appleton Estate, Hampden Estate and Worthy Park in Jamaica, and El Dorado in Guyana.
Rum is also made across Latin America, in India and the Philippines, in Australia and the United States, and in Europe. Molasses travels, so a rum distillery can work far from any cane field, and the British rum renaissance covers the distilleries now making rum in Britain.
Rum’s styles are set by colour, age, raw material and strength
Rum has fewer production rules than whisky or Cognac, so its style names are loose. Dark rum describes a colour, not an age. Age statements mean different things to different producers. Spiced rum sits on the same shelf, but in law it is a spirit drink rather than rum.
The flavour, body and sweetness of each style, side by side in one table, are in what does rum taste like.
Rum styles at a glance; legal status from Regulation (EC) No 110/2008 as retained in UK law
White
- What defines it
- Clear; unaged, or aged and filtered
- Legal status
- Rum
- Typical use
- Daiquiri, Mojito, long drinks
Gold
- What defines it
- Usually one to three years in oak; some colour may be caramel
- Legal status
- Rum
- Typical use
- Mixing, easy sipping
Dark
- What defines it
- Colour, from long ageing, added caramel or both
- Legal status
- Rum; dark is not a legal term
- Typical use
- Dark and Stormy, punches, cooking
Aged
- What defines it
- Years in oak; the age statement depends on the producer
- Legal status
- Rum
- Typical use
- Neat, or in an Old Fashioned
Navy
- What defines it
- A full, dark blend in the Royal Navy tradition
- Legal status
- Rum
- Typical use
- Neat in small measures, punches
Overproof
- What defines it
- Bottled well above standard strength
- Legal status
- Rum
- Typical use
- A float on a tiki drink, a splash in punch
Rhum agricole
- What defines it
- Distilled from fresh cane juice
- Legal status
- Rum; agricultural only from French overseas departments or Madeira
- Typical use
- Ti’ Punch, neat
Spiced
- What defines it
- Rum flavoured with spices after distillation
- Legal status
- Spirit drink, not rum
- Typical use
- Long with cola or ginger beer; neat if dry
| Style | What defines it | Legal status | Typical use |
|---|---|---|---|
| White | Clear; unaged, or aged and filtered | Rum | Daiquiri, Mojito, long drinks |
| Gold | Usually one to three years in oak; some colour may be caramel | Rum | Mixing, easy sipping |
| Dark | Colour, from long ageing, added caramel or both | Rum; dark is not a legal term | Dark and Stormy, punches, cooking |
| Aged | Years in oak; the age statement depends on the producer | Rum | Neat, or in an Old Fashioned |
| Navy | A full, dark blend in the Royal Navy tradition | Rum | Neat in small measures, punches |
| Overproof | Bottled well above standard strength | Rum | A float on a tiki drink, a splash in punch |
| Rhum agricole | Distilled from fresh cane juice | Rum; agricultural only from French overseas departments or Madeira | Ti’ Punch, neat |
| Spiced | Rum flavoured with spices after distillation | Spirit drink, not rum | Long with cola or ginger beer; neat if dry |
White rum is light and made for mixing
White rum is clear: unaged, or aged briefly and filtered with charcoal to take out the colour. It is mostly column-distilled and light, with cane, citrus and a little vanilla, and it is the rum of the Daiquiri and the Mojito.
Gold rum has a few years in oak
Gold rum has usually spent one to three years in oak, enough for vanilla, honey and light caramel. Some takes part of its colour from caramel, so the shade alone is no proof of age. It mixes without taking over a drink.
Dark rum is a colour, from oak or caramel
Dark rum is dark from long ageing in charred oak, from added caramel, or both, and the two taste different. Long-aged dark rum shows toffee, coffee and dried fruit, while a young rum darkened with caramel still tastes young. Demerara rum from Guyana sits at the heavy end. Dark rum or spiced rum sets the two styles side by side.
Aged rum depends on how its age is counted
Aged rum carries an age statement, and producers read the number differently. Jamaica’s geographical indication requires an age statement to name the youngest rum in the bottle, by The Fat Rum Pirate’s secondary account, and Martinique’s appellation sets a minimum age for each term: three years for VO, four for VSOP and six for XO. A solera number usually states the oldest. Expect oak, dried fruit, tobacco and dark chocolate, and drink it neat or in an Old Fashioned.
Rhum agricole is made from fresh cane juice
Rhum agricole is distilled from fresh cane juice, mostly in the French Caribbean, and tastes of cut grass, green banana and white pepper. Martinique’s appellation controls it down to the cane varieties. The unaged blanc goes into a Ti’ Punch, and Rhum JM and Rhum Clement are two of the island’s houses.
Navy rum follows the Royal Navy blend
Navy rum follows the style of the rum the Royal Navy issued: full-bodied, with dense molasses, dried fruit and liquorice. Pusser’s Rum describes its rum as made to the Admiralty’s specifications. Navy strength is a separate matter from the style.
Overproof rum is used by the splash
Overproof rum is bottled well above standard strength. Jamaican white overproof is an everyday spirit on the island. In drinks it works as seasoning: a float on a Rum Runner, a measure in a Bahama Mama. ABV vs proof explains the arithmetic.
Spiced rum is a spirit drink in law
Spiced rum is rum with spices added after distillation, most often vanilla, cinnamon or cassia, clove and allspice, and its legal name is spirit drink. It can be dry or very sweet. It does not stand in for a white, dark or aged rum in a recipe written for one. Expedition Spiced Rum is a spiced rum, and what is spiced rum covers the style in full.
Rum, rhum and ron are three traditions with one raw material
The English-speaking islands favoured heavier, pot-distilled molasses rum. The French islands turned to fresh cane juice and made rhum. The Spanish-speaking Caribbean built a lighter, column-distilled ron, with Havana Club as the Cuban reference. Rum, rhum or ron sets out how the three differ, island by island.
Cachaça is a close relative. US federal rules class it as a type of rum, a distinctive product of Brazil made under Brazilian law, and it is the base of the Caipirinha.
Aged rum is for sipping, white rum is for mixing
Match the rum to the job. An aged rum loses what it has in a long glass of cola, and a young white rum has little to give neat.
Sip aged rum slowly, with a drop of water if strong
Sip aged rum at room temperature in a tulip glass, or over one large cube. A few drops of water open a high-strength bottling. How to taste rum sets out the method, glass, nose, palate and finish.
Five classic drinks cover most of what rum can do
Five drinks cover most of what rum can do:
- Daiquiri: white rum, lime and sugar.
- Mojito: white rum, mint, lime, sugar and soda.
- Dark and Stormy: dark rum and ginger beer. Gosling’s marks the Dark ’n Stormy name as a registered trade mark.
- Mai Tai: aged rum, lime, orgeat and orange curaçao.
- Old Fashioned with aged rum: rum, sugar and bitters, stirred.
Ginger beer and cola suit most rums in a long drink
For a long drink, ginger beer, cola, ginger ale, pineapple juice and soda suit most rums. White rum also takes tonic and coconut water. For spiced rum, what to mix with spiced rum gives the mixers and ratios.
The label tells you more than the price
Price says little about a rum. The label says more, once you know which lines to read.
Four lines on the label repay attention
Four lines repay attention. The legal name: rum, or spirit drink if it has been flavoured. The strength: 37.5% ABV is the legal minimum, and in our experience 40% ABV or more holds up better, neat and in a long drink. A named distillery or country. And an age statement, read with the solera caveat above. Added sugar and caramel need not be declared, so a rum that tastes very sweet neat has probably been sweetened. How to read a rum label covers the rest.
Rum keeps for years, but not once it is open
Store rum upright, away from sunlight, at room temperature. It does not age in the bottle, so a sealed bottle tastes the same in ten years. Once a bottle is open the air slowly takes the aroma, so our guidance is to finish it within a year or two.
The facts here come from the regulation and the record
The British definition of rum is Regulation (EC) No 110/2008, Annex II, category 1, as retained in UK law and published on legislation.gov.uk. The EU’s 20-gram sweetening limit is in Regulation (EU) 2019/787, Annex I, category 1. The US minimum of 40% ABV is in 27 CFR 5.147, the federal standard of identity for rum, read on Cornell LII.
Richard Ligon’s account is A True and Exact History of the Island of Barbados, published in 1657 and read in the Project Gutenberg edition. The Martinique rules are from the AOC Rhum de la Martinique specification, and the Jamaica rules from The Fat Rum Pirate, a secondary source. The Royal Navy dates are from Royal Museums Greenwich and Hansard, and Black Tot Day sets out the ration in full.