Olive Oil Lamps: How They Work, How to Make One, and the History
An olive oil lamp is one of the oldest lights people have made: a vessel of oil, a fibre wick and a small flame. For most of recorded history around the Mediterranean, olive oil was the everyday lamp fuel, and the idea still appeals today as a power-cut backup, a use for a bottle that has gone past its best, or a quiet light at the table. This guide explains how the lamp actually works, which oil to burn (and which not to), how to make a simple jar lamp step by step, what fire and rescue services advise about any open flame, and what archaeology tells us about the lamps people lit for thousands of years. We have also kept the scripture brief and accurate, and pointed to our fuller articles where you want more.
Our own oil is made for the table rather than the lamp: see our Cold-Pressed Single-Estate Extra Virgin Olive Oil - Marrakech (500ml) for cooking.
The Short Answer
- An olive oil lamp works because the wick draws oil up by capillary action and the heat of the flame turns that thin film into vapour, which is what actually burns. The oil in the reservoir does not burn.
- Olive oil is hard to ignite on its own: a laboratory safety data sheet for olive oil gives a flash point of 225°C, so a bowl of oil at room temperature needs a wick to keep a flame going.
- Burn cheap or old oil, not your best bottle. The International Olive Council's lowest virgin grade, lampante oil, is "not fit for consumption as it is", and rancid kitchen oil that you would not cook with still burns.
- A simple lamp needs a glass jar, a length of stiff wire bent into a wick holder, a 100% cotton wick and enough oil to sit just below the top of the holder.
- Treat it like any open flame. Fire Scotland advises a stable, non-flammable base wider than the lamp, a trimmed wick, no overfilling, and never leaving a lit lamp unattended. If oil catches fire, never throw water on it.
- Clay lamps burning olive oil lit Greek and Roman homes for centuries; by the early Roman period they were mass-produced in moulds. Both the Bible and the Qur'an describe a lamp fed by olive oil.
How an Olive Oil Lamp Works
The flame of an oil lamp does not burn liquid oil. It burns oil vapour. The wick is the engine: in an article on candle flames for Europhysics News, Leiden physicist Jo Hermans describes the wick as acting "as a fuel pump", drawing liquid fuel up by capillary action, the same effect that pulls water into a paper towel. At the top of the wick the heat of the flame vaporises a thin film of oil, the vapour mixes with air and burns, and that heat vaporises the next film. Hermans explains that the visible light comes mainly from tiny glowing carbon particles inside the flame; when combustion is incomplete, those particles escape as soot.
This is why olive oil makes a calm lamp fuel. A safety data sheet for laboratory olive oil (Acros Organics, CAS 8001-25-0) lists a flash point of 225°C, far above room temperature. A match dropped into a bowl of olive oil is therefore unlikely to light the bowl; only the oil drawn up into the wick and right next to the flame gets hot enough to vaporise. It also explains the single most useful adjustment you can make: the height of the wick. A wick standing too tall delivers more vapour than the flame can burn cleanly, which shows up as a tall, flickering, smoky flame. A wick trimmed short burns smaller and cleaner.
Flash point and smoke point are different measures, and both matter here. Smoke point describes when oil in a pan starts to break down and smoke; we explain what happens to olive oil in a hot pan in our guide to olive oil at high heat. In a lamp, the oil in the reservoir stays cool; only the tip of the wick is hot.
Which Oil to Burn: Lampante, Old Oil and Why Not Your Best Bottle
Any olive oil will burn in a lamp, so the honest advice is to burn the oil you least want to eat. The trade still calls the lowest virgin grade lampante, a name that recalls its old use as lamp oil. The International Olive Council defines lampante virgin olive oil as oil that "is not fit for consumption as it is", with free acidity of more than 3.3 grams per 100 grams, and says it "is intended for refining or for technical use". Where you can buy it as lamp oil, it is the natural choice.
For most households the practical lamp-grade oil is simpler still: the bottle at the back of the cupboard that has turned rancid. Oxidised oil tastes stale and is not worth cooking with, but it still burns. Our guide on how to tell if olive oil has gone off explains the smell and taste checks; anything that fails them can go to the lamp instead of the bin.
We would not burn a good extra virgin olive oil, our own included. The flavour, aroma and polyphenols that make a fresh cold-pressed oil worth buying are wasted in a flame, and a cheaper oil gives the same light. Two more cautions from the guidance we read:
- Avoid scented or coloured additions. Be Ready Utah, a state emergency-preparedness programme, advises using pure lamp oil "with no color or perfume". Adding essential oils or herbs to a homemade lamp changes how the fuel burns and is best avoided.
- Other cooking oils are less predictable. The Mother Earth News guide we drew on says its author does not vouch for canola or corn oil, which she says may smoke and smell. If you try another oil, watch the flame closely.
How to Make an Olive Oil Lamp, Step by Step
Before you start: this is a real open flame. Make and use it on a clear, heat-resistant surface, away from curtains, paper and anything that can burn, with children and pets out of reach. The full safety guidance is in the next section; please read it before you light the wick.
The jar lamp below follows the method published in Mother Earth News by Deanna Duke (October 2024), the most widely shared version of the project. You will need:
- A sturdy, wide-mouthed glass jar, such as a canning jar, with no cracks or chips
- Stiff, bendable steel wire, roughly one and a half to two times the height of the jar
- A length of 100% cotton string or twine for the wick (synthetic fibres melt rather than wick)
- Lamp-grade olive oil: lampante oil or old kitchen oil
- Pliers, and a long match or lighter
- Prepare the wick. The Mother Earth News method soaks the cotton in a little water, coats it in table salt, squeezes it out and leaves it to dry overnight; the author says this helps the wick burn longer. Unsalted cotton also works.
- Make the hook. Bend one end of the wire into a long hook that hangs over the rim of the jar. It holds the wire in place and doubles as a handle for lifting the wick out.
- Make the stand. Coil the other end into a small spiral stand that rests on the bottom of the jar, so the top of the coil sits a little below the rim.
- Fit the wick. Thread about 5 cm of wick through the top of the coil and pinch the wire around it, leaving only around 6 mm (a quarter of an inch) standing above the wire. The rest hangs down into the oil.
- Add the oil. Pour the oil in slowly, using a funnel if you have one, until the level sits just below the top of the coil. Too much oil can reach the flame and drown it; too little and the wick dries out. Wipe up any drips on the jar or the table straight away.
- Let the wick soak, then light it. Give the oil time to climb the wick (Be Ready Utah suggests letting a new wick soak for an hour), then light the exposed tip. If the flame is tall or smoking, put it out, let it cool and pinch the wick down shorter.
- Put it out properly. Snuff the flame with a snuffer or by pressing the wick down into the oil with the wire. Never blow oil across the table, and never leave the lamp burning when you leave the room or go to bed.
A few tablespoons of oil will run a small wick for a good while, so you rarely need a full jar. Refill only when the lamp is out and cool.
Olive Oil Lamp Safety: What Fire and Rescue Services Advise
Olive oil's high flash point makes it a forgiving fuel, but an oil lamp is still an open flame sitting on a reservoir of something that burns. Scottish Fire and Rescue Service puts it plainly: oil lamps "do contain liquid that can go on fire". Its oil-lamp advice is the best short checklist we found:
- Keep lamps away from other heat sources, such as radiators and fireplaces.
- Keep spare oil in a proper bottle, away from heat and children.
- Keep the wick properly trimmed; a longer wick can make the flame too large and create a fire hazard.
- Use a stable, non-flammable base that is wider than the lamp, so it cannot tip over.
- Do not overfill the lamp; spilled oil can start a fire.
- Do not use a cracked or broken lamp.
The same service's general candle advice applies to any flame: never leave it unattended, put it out before you leave the room or go to bed, do not place it under shelves, and keep it away from children and pets. Be Ready Utah adds that lamps should be used only in well-ventilated areas and never filled while lit.
Children and lamp fuel. Health Canada warns that if a child can reach an oil lamp, they "may ingest, inhale or aspirate the liquid fuel in the reservoir", with effects that can be severe, and advises against decorative liquid-fuel lamps in homes with children under five. Keep any lamp and its fuel out of sight and reach.
If the oil catches fire. Burning oil behaves like a chip-pan fire. Suffolk Fire and Rescue Service's guidance is: "Never throw water over it." The safety data sheet for olive oil makes the same point: water may spread the fire. Do not take risks or tackle a spreading fire yourself; get everyone out, stay out and call the emergency services (999 or 112 in the UK and Ireland, 911 in the US). Working smoke alarms matter here as anywhere.
Some DIY guides claim an olive oil lamp simply goes out if it is knocked over. Sometimes it will, because the oil is hard to ignite; but a still-lit wick lying in spilled oil on a tablecloth is exactly the scenario fire services warn about. Treat the high flash point as a margin of safety, not a reason to relax.
A Short History of the Olive Oil Lamp
People lit lamps long before they pressed olives. In a 2021 experimental study in PLOS ONE, Medina-Alcaide and colleagues recreated Palaeolithic lighting in Isuntza I cave in the Basque Country and found that stone lamps burning animal fat (bone marrow) gave a steady, candle-like light with little smoke for well over an hour, well suited to lighting one spot rather than walking through a cave.
Around the Mediterranean, the fuel became olive oil. Wesleyan University's archaeology collection, which holds lamps from about 1500 BCE to the 8th century CE, notes that "the most common oil used in the Mediterranean region was olive oil". The sequence it describes runs like this:
- Open bowls. The earliest clay lamps were shallow bowls with a wick floating in a pool of oil; later versions were folded at one edge to make a spout for the wick to rest in.
- Greek wheel-made lamps. From around the 6th and 5th centuries BCE, Greek potters made a distinctive wheel-made lamp, with a large hole for pouring in the oil.
- Mould-made lamps. Greek workshops began making lamps in moulds in the Hellenistic period, from about 300 BCE, and by the 1st century BCE the Romans had their own mould-made style. One carved original could produce many copies, which allowed mass production.
- Roman factory lamps. A simpler "factory lamp" developed in the 1st century CE and lasted at least into the 4th, with a channel along the nozzle that guided spilled oil back into the body. Wicks were probably linen, papyrus or other plant fibres.
The typical lamp of the period is easy to recognise: a small round body with a filling hole in a dished top, a nozzle for the wick, and often a ring handle. A mould-made Roman example in the Metropolitan Museum of Art, dated to the first half of the 1st century CE and probably made in Italy, has exactly that arrangement. Lamps of the same basic type carried on through the Byzantine period and into early Islamic times.
The olive oil lamp's long run ended with chemistry and engineering. In 1782 the Swiss scientist Aimé Argand designed a burner with a circular wick and a glass chimney that gave a steady, smokeless flame, and Britannica records that lighthouse fuels moved from fish and vegetable oils to mineral oil by the mid-19th century. Kerosene and then electricity did the rest.
The Lamp in Scripture: Exodus and the Verse of Light
Because olive oil was the lamp fuel of the ancient Near East, it appears in sacred texts in exactly that role. In the Bible, Moses (AS) is commanded: "And thou shalt command the children of Israel, that they bring thee pure oil olive beaten for the light, to cause the lamp to burn always" (Exodus 27:20, KJV). Our article on olive oil in the Bible covers this passage and the other lamp references in full.
In the Qur'an, the lamp is the central image of the Verse of Light, Surah An-Nur 24:35. In the Sahih International translation:
"Allah is the Light of the heavens and the earth. The example of His light is like a niche within which is a lamp, the lamp is within glass, the glass as if it were a pearly [white] star lit from [the oil of] a blessed olive tree, neither of the east nor of the west, whose oil would almost glow even if untouched by fire. Light upon light. Allah guides to His light whom He wills. And Allah presents examples for the people, and Allah is Knowing of all things."
— Surah An-Nur 24:35, Sahih International
The verse is a parable of divine light and guidance, not a description of lamp-making, and we quote it here for that reason alone: it shows how naturally a lamp of olive oil spoke to its first listeners. For the olive's place in the Qur'an and the Sunnah more broadly, see our guide to olive oil in the Quran and the Sunnah.
Do Olive Oil Lamps Have Benefits?
People searching for the benefits of an olive oil lamp usually mean practical ones, and those are real:
- A use for spoiled oil. Rancid oil becomes light rather than waste.
- A forgiving fuel. With a flash point of around 225°C, olive oil is much harder to ignite than the oil in the reservoir might suggest, which is why the wick does all the work.
- Simple, cheap backup light. A jar, some wire and a cotton wick make a lamp for a power cut, provided you treat it as an open flame.
What we would not claim is any health benefit. Any flame burned indoors releases combustion products, which is why the guidance above stresses ventilation, and nothing about burning olive oil carries the benefits that come from eating it. If you want olive oil for your health, it belongs on your plate.
Two related searches come up often. An "olive oil candle" is usually the same floating-wick or jar lamp described above, since olive oil stays liquid at room temperature and cannot hold a shape like wax. An "olive oil stove" is a different proposition: a cooking flame needs far more heat than a single wick provides, and we would not improvise one indoors.
Why Sidr & Stone
We make olive oil to be eaten, and we would rather tell you to burn the cheap stuff than sell you a premium bottle for the lamp. What we can offer is the oil for your kitchen, made with the same care this article applies to the lamp: knowing exactly what is in the vessel and where it came from.
- Single-estate: Sidr & Stone olive oil comes from our own family-owned farm on the plains outside Marrakech, Morocco; we control every step from tree to bottle, with no blending across origins.
- Rain-fed: the trees are not irrigated; they take what the season gives.
- Organically grown: no synthetic fertilisers, pesticides or herbicides are used (not yet certified organic; certification is in progress).
- Single harvest: a small, limited batch; once the season's pressing is gone, it is gone until the next harvest.
- Cold-pressed within hours of harvest: to protect flavour, aroma and polyphenols.
- Unfiltered extra virgin: minimally processed, so natural sediment may settle in the bottle.
- 100% natural: a single ingredient, olive oil, with nothing added.
- Dark glass with a gold label: packaging that protects the oil from light.
- 10% of profits to charity: a brand-wide commitment.
- Fulfilment in the UK, EU, and US.
If you are choosing a cooking oil, our guide to choosing a quality olive oil walks through the checks that matter. We will not tell you Sidr & Stone is the best olive oil; that would be the very claim we warn readers about. What we will say is that it is single-estate Moroccan, rain-fed, organically grown and cold-pressed within hours of harvest, and that the care shows in the taste and the colour.
Frequently Asked Questions
Can you use olive oil in an oil lamp?
Yes. Olive oil was the main lamp fuel of the ancient Mediterranean and burns well on a cotton wick. Use cheap, lampante or out-of-date oil rather than a good extra virgin, and keep the wick trimmed short.
Why doesn't the olive oil in the lamp catch fire?
Because the flame burns oil vapour, not liquid oil. The wick draws oil up by capillary action and only the film at the hot tip vaporises; with a flash point of around 225°C, the cool oil in the reservoir is hard to ignite.
How do I stop my olive oil lamp smoking?
Shorten the wick. A wick standing more than about 6 mm (a quarter of an inch) above its holder feeds the flame more fuel than it can burn cleanly. Put the lamp out, let it cool, then pinch the wick down.
Is an olive oil lamp safer than a candle or a paraffin lamp?
Olive oil is harder to ignite than many fuels, but any oil lamp is an open flame. Follow fire-service advice: a stable, non-flammable base, no overfilling, never unattended, and never water on burning oil.
Should I burn Sidr & Stone olive oil in a lamp?
We would not. Our oil is pressed for the table, and its flavour and polyphenols are wasted in a flame. Burn lampante oil or a bottle that has gone rancid, and keep good extra virgin oil for food.
How long does an olive oil lamp burn?
It depends on the wick and the vessel. A small wick uses oil slowly, so a few tablespoons can last for hours; top up only when the lamp is out and cool.
Where can I buy Sidr & Stone olive oil?
Directly from our product page, as a limited single-harvest batch, with fulfilment in the UK, EU, and US. It is for cooking and eating, not for burning.
Is olive oil a medicine?
No. Olive oil is a food, not a medicine. It has a long traditional history — including being honoured in the Prophetic Sunnah — and a substantial body of modern research, particularly around polyphenols, cardiovascular health, and the Mediterranean diet pattern. It can be a worthwhile part of a healthy routine, but it does not cure diseases and is not a substitute for medical care. Be cautious of any olive oil marketed with specific disease-cure claims.
Final Thoughts
An olive oil lamp is a small piece of physics that people worked out thousands of years ago: a wick that lifts the oil, a flame that turns it to vapour, and a fuel that is hard to ignite on its own. Making one takes a jar, some wire and a cotton wick. Making one well means burning the right oil, keeping the wick short and treating the flame with the respect fire services ask of every candle.
It also means putting the good oil where it belongs. Burn the rancid bottle and the lampante oil; cook with the fresh one. If you are looking for the second kind, our Cold-Pressed Single-Estate Extra Virgin Olive Oil - Marrakech (500ml), single-estate, rain-fed and cold-pressed within hours of harvest, is available as a limited single-harvest batch, with fulfilment in the UK, EU, and US.
Our extra virgin olive oil is grown organically on our own single-estate farm on the plains outside Marrakech: we control every step from tree to bottle, and no synthetic pesticides, herbicides or fertilisers are used. It is not yet certified organic — certification is in progress, and we will publish it as soon as it comes through.
Sources
- Scottish Fire and Rescue Service. Candle safety (oil lamps section). firescotland.gov.uk. Accessed 12 October 2026.
- Suffolk Fire and Rescue Service. Guidance on Chip Pans, Grill Pans and Woks. suffolk.gov.uk. Accessed 12 October 2026.
- Health Canada. Safety precautions for decorative and other oil lamps (modified 15 February 2024). canada.ca.
- Be Ready Utah. Candle and Oil Lamp Safety. beready.utah.gov. Accessed 12 October 2026.
- International Olive Council. Olive oils: designations and definitions. internationaloliveoil.org. Accessed 12 October 2026.
- Acros Organics / Fisher Scientific. Material Safety Data Sheet: Olive oil, CAS 8001-25-0. fishersci.com.
- Hermans LJF. Amazing candle flames. Europhysics News. 2011;42(1):20. europhysicsnews.org.
- Duke D. How to Make an Olive Oil Lamp DIY. Mother Earth News. 23 October 2024. motherearthnews.com.
- Medina-Alcaide MÁ, Garate D, Intxaurbe I, Sanchidrián JL, Rivero O, Ferrier C, Mesa MD, Pereña J, Líbano I. The conquest of the dark spaces: An experimental approach to lighting systems in Paleolithic caves. PLoS One. 2021;16(6):e0250497. PMID: 34133423. doi:10.1371/journal.pone.0250497
- Wesleyan University, Archaeology and Anthropology Collections. Ancient Oil Lamps. wesleyan.edu.
- The Metropolitan Museum of Art. Terracotta oil lamp, Roman, 1st half of 1st century CE. metmuseum.org.
- Encyclopaedia Britannica. Oil lamp. britannica.com.
Disclaimer: This article describes how olive oil lamps work, how to make a simple one, and the history of oil lamps, drawing on fire-service guidance and published sources at the time of writing; guidance may change, and readers should check current advice from their local fire and rescue service. Any open flame carries a risk of fire: follow the safety guidance above and never leave a lit lamp unattended. Scripture is quoted from the named translations. Olive oil is a food, not a medicine, and is not a substitute for medical treatment of any condition. For any health concern, consult a qualified medical professional.