The scotch bonnet is the chilli behind jerk chicken, Jamaican curry goat and most of the hot sauce in the Caribbean. The ghost pepper is the chilli that made international news in 2007 for being the first verified above a million Scoville units.
People often assume they sit at opposite ends of some scale. In fact they are the same species, and the more useful difference between them is not heat at all.
The short answer
A ghost pepper is roughly four to five times hotter than a scotch bonnet. They taste completely different, and they are not substitutes for each other.
The scotch bonnet is fruity, sweet and immediate. The ghost pepper is smoky, slow and relentless.
If you are cooking Caribbean food, use a scotch bonnet. The fruitiness is not a garnish, it is the point of the dish. If you want serious heat with a smoky depth behind it, use a ghost pepper and use far less of it.
What each chilli is
Both are Capsicum chinense, the same species. That surprises people, but it explains why both share a fruity undertone that a jalapeño or a cayenne does not have.
The scotch bonnet is grown across the Caribbean and West Africa, named for its squat, crumpled shape, which was thought to resemble a Tam o' Shanter. It is closely related to the habanero and the two are often sold interchangeably, though cooks from the region will tell you the scotch bonnet is sweeter.
The ghost pepper, known as Bhut Jolokia in Assam and naga morich in Bangladesh, comes from north east India and Bangladesh. It is a naturally occurring hybrid with some Capsicum frutescens ancestry, which is part of why it reaches heat levels the scotch bonnet does not. There is more on it in our guide to what a ghost pepper is, and on the naming confusion in naga chilli vs ghost pepper.
How hot is each one
| Chilli | Scoville Heat Units | Times hotter than a jalapeño |
|---|---|---|
| Jalapeño | 2,500 to 8,000 | 1x |
| Scotch bonnet | 100,000 to 350,000 | roughly 50x |
| Habanero | 100,000 to 350,000 | roughly 50x |
| Ghost pepper (Bhut Jolokia) | 855,000 to 1,041,427 | roughly 200x |
| Carolina Reaper | 1,400,000 to 2,200,000 (average 1,641,183) | roughly 300x |
| Pepper X | 2,693,000 | roughly 500x |
On the midpoints, a ghost pepper is about four to five times hotter than a scotch bonnet. That is a large gap, but it is smaller than the gap between a scotch bonnet and a jalapeño, which is around fiftyfold.
Scoville figures describe ranges, not fixed values. Growing conditions, ripeness and the individual plant all move the number, and two pods from the same bush can differ noticeably. More detail on how the scale works is in our ghost pepper Scoville guide.
The difference that actually matters: flavour
Heat is the headline and the wrong thing to choose on.
Scotch bonnet is distinctly fruity, closer to apricot or stone fruit, with a sweetness that survives cooking. The heat arrives fast, sits bright and high in the mouth, and fades reasonably quickly. That fast, sweet, immediate quality is why it works in a marinade for jerk, where it has to flavour the meat rather than just burn it.
Ghost pepper is smoky and earthy, with the fruit sitting further back. The heat is famously slow. It arrives a beat after you swallow, builds for thirty seconds or more, and stays. That delay catches people out, because the first mouthful feels manageable.
This is why swapping one for the other does not work. A jerk marinade made with ghost pepper is hotter and tastes wrong, because the sweetness it was built around is missing. A South Asian curry made with scotch bonnet is brighter and thinner than intended.
Which to use for what
| Use it for | Scotch bonnet | Ghost pepper |
|---|---|---|
| Jerk chicken or pork | Yes, this is its dish | No, wrong flavour profile |
| Caribbean curries and stews | Yes | Only if you want to change the dish |
| Pepper sauce for the table | Yes | Yes, in much smaller quantity |
| South Asian curries | Works, but not traditional | Yes |
| Marinades for grilling | Yes | Yes, use sparingly |
| Chilli pickle or achar | Rarely | Yes, this is its traditional preserved form |
| Eating raw on a dare | Unpleasant | Genuinely unwise |
If you are substituting
Sometimes you cannot get the one you want. Here is how to do it without ruining the dish.
Ghost pepper in place of scotch bonnet: use roughly one fifth of the quantity, and add something sweet to replace what you lost. A little mango, pineapple or brown sugar gets you closer. Accept that it will taste smokier.
Scotch bonnet in place of ghost pepper: use four to five times as much to match the heat, and expect a brighter, sharper result. In a slow-cooked dish this works better than you might think.
A note on preserved forms. The ghost pepper has a long tradition of being preserved in oil and salt as a chilli pickle, which concentrates it and mellows the raw edge into something layered. Mr Naga Original is that product. A quarter teaspoon stirred into a curry base does the work of a whole fresh chilli, without the handling.
Handling both safely
Both chillies are hot enough to need care, and the ghost pepper is hot enough to need real care.
- Wear gloves with fresh ghost peppers. Capsaicin binds to skin and does not wash off easily with water alone.
- Never touch your eyes. This is the mistake everyone makes once.
- Wash with oil or dish soap first, then water. Capsaicin is oil-soluble, not water-soluble.
- Ventilate the kitchen. Frying either chilli, and especially a ghost pepper, puts capsaicin into the air and it is unpleasant to breathe.
- Dairy, not water, for the burn. Milk, yoghurt or lassi. Water spreads the capsaicin around rather than removing it.
Buying either in Australia
Fresh scotch bonnets turn up seasonally at Caribbean, African and some Asian grocers, and occasionally at larger markets. Fresh ghost peppers are harder to find and are usually sold by specialist growers.
For both, the reliable year-round option is a preserved product. For scotch bonnet that usually means a Caribbean pepper sauce. For ghost pepper it means a chilli pickle, a paste or a hot sauce, depending on how you intend to cook with it.
Check the chilli content rather than the Scoville claim on the front. A product advertising a million Scoville units may contain very little of the chilli that earned the figure.
Frequently Asked Questions
Is a scotch bonnet hotter than a ghost pepper?
No. A scotch bonnet measures 100,000 to 350,000 Scoville Heat Units and a ghost pepper measures 855,000 to 1,041,427. On the midpoints the ghost pepper is roughly four to five times hotter.
Are scotch bonnets and habaneros the same thing?
They are very closely related, both Capsicum chinense, and they share a Scoville range of 100,000 to 350,000. They are not identical. The scotch bonnet is generally sweeter and fruitier, and cooks from the Caribbean treat them as distinct even where shops sell them interchangeably.
Can I use ghost pepper instead of scotch bonnet in jerk chicken?
You can, but it will not taste like jerk. Use about one fifth of the quantity and add something sweet such as mango or brown sugar to replace the fruitiness. The result will be smokier and hotter than intended.
How many Scoville units is a scotch bonnet?
Between 100,000 and 350,000 Scoville Heat Units, which is roughly fifty times hotter than a jalapeño. The exact figure varies with growing conditions, ripeness and the individual plant.
What is the best way to cool the burn from either chilli?
Dairy. Milk, yoghurt, lassi or ice cream. Capsaicin is oil-soluble, so the fat in dairy lifts it away. Water spreads it around the mouth and makes the burn feel worse.
Which chilli is better for a beginner?
The scotch bonnet, comfortably. It is hot but the heat arrives quickly and fades, so it is easier to judge. The ghost pepper has a delayed onset that builds for thirty seconds or more, which is how people end up eating far more than they intended.