Culinary Chile Peppers (Scoville Heat Chart)

A Scoville chart helps you compare chile peppers, but its numbers are estimates, not promises. Bell peppers have no heat, while jalapeños, serranos, habaneros, and ghost peppers rise sharply in intensity. Choose a pepper by its range, then add a small amount, cook, taste, and adjust. Careful handling and simple cleanup help prevent painful surprises.

Chile peppers bring different kinds of heat and flavor to dishes, from fresh salsa to stews and roasted sauces. In the American Southwest and across Mexican cooking, you may see poblanos, jalapeños, and serranos used in very different ways. A heat chart can help you choose, but it cannot tell you exactly how hot a pepper in your hand will taste.

I teach cooks to treat the chart as a starting point, then adjust by tasting a cooked sample. That matters because heat varies between peppers, even when they share a name. The steps below explain what Scoville numbers mean and how to choose, prepare, cook, and serve chiles with more control.

What the Scoville scale measures

The Scoville scale ranks chile heat in Scoville Heat Units, or SHU. These figures estimate the concentration of capsaicinoids, the compounds that cause a hot sensation. A pepper’s listed range is a guide, not a guaranteed measurement of the pepper or batch you are cooking.

The original Scoville test relied on people tasting diluted pepper extracts. Human taste varies, so that method was subjective. Today, laboratories can use high-performance liquid chromatography, or HPLC, to measure capsaicinoids. The results can be reported as SHU, but the number you see for a pepper type is still usually a broad range.

Capsaicin is the best-known capsaicinoid. It causes the burning sensation, but it does not literally raise your mouth’s temperature. Water may spread the sensation rather than clear it. Dairy can help more because casein, a milk protein, helps disperse capsaicin.

Chile pepper Scoville heat chart

This chart compares approximate ranges for common culinary peppers. Cultivar, growing conditions, and individual fruit can affect heat, so do not use a listed value as an exact reading. When a recipe calls for a whole pepper, start with less if you are unsure how hot yours is.

The ranges show why swapping one pepper for another can change a dish. A serrano may be several times hotter than a mild jalapeño, while a habanero can be far hotter than either. Ghost pepper figures are especially high, but the name alone still does not give an exact heat reading.

A useful rule is to choose by both heat and flavor. Poblano and jalapeño are common choices when you want chile character without extreme heat. Habanero and ghost pepper call for much smaller amounts. If you are cooking for others, keep the chile separate or serve it on the side when you cannot judge their comfort level.

Choosing chiles and preparing a safe work surface

Choose a pepper by its likely heat range and the role it will play in the dish. Before cutting, set out a clean board and knife, keep the chile away from ready-to-eat foods, and consider wearing gloves. These simple steps reduce accidental transfer to hands, utensils, and food.

The pale inner ribs, also called placental tissue, hold much of a pepper’s capsaicinoids. Seeds are often hot because they touch this tissue, rather than because they are the main source of heat. For a milder result, remove the stem, scrape out the ribs, and remove the seeds. This can lower the heat you add, but it will not make every pepper mild.

Use gloves when handling hot chiles, especially when cutting them or working with several at once. Do not touch your eyes or face. Keep raw chile separate from food that will not be cooked, and wash the board, knife, and hands with detergent after cutting. Water alone is not a dependable way to remove oily capsaicin residue.

If you do not know a pepper’s heat, cut off a small piece and taste cautiously, or use only a small amount in the dish. A pepper’s appearance is not a reliable heat test. The safest choice for a sensitive eater is to prepare a mild base and offer hotter chile separately.

Controlling chile heat during cooking

Cooking changes a chile’s texture and aroma, but it does not reliably remove its heat. Add chile in stages, cook it with the dish, then taste a small sample before adding more. This is the most practical way to manage an ingredient whose heat can vary from pepper to pepper.

Roasting, sautéing, or simmering can change the flavor of a chile. However, those steps do not provide a predictable reduction in SHU. If you add a whole hot pepper because a chart suggests a certain heat level, the result may still be much hotter than expected.

A controlled approach works well:

• Start with a small portion, such as a little minced pepper or a pinch of dried chile.
• Cook the dish long enough for the chile to mix in.
• Taste a small sample, and wait a moment to judge the heat.
• Add another small amount only if needed, then repeat.

This method also helps when adapting a recipe. If it calls for a jalapeño but you have a serrano, use less at first. For a very hot pepper such as habanero, start with a small piece rather than a whole fruit. Keep notes if you often cook the same dish; your notes should record the pepper and amount, not treat the pepper’s SHU range as exact.

Cleaning tools and maintaining cookware

Chile residue can transfer from a knife, board, or pan to hands and food. Clean tools and surfaces promptly with detergent and water, and wash your hands before touching your face or contact lenses. For chile dishes with acidic ingredients, choose cookware that is not reactive.

Stainless steel, enamel, and intact food-safe nonstick cookware are suitable choices for dishes containing tomatoes, citrus, or vinegar. Avoid prolonged contact between acidic food and unlined aluminum or copper. Acid can react with these metals, which may affect the food and the cookware.

After cooking, let the pan cool before washing it. Follow the cookware maker’s guidance for cleaning and temperature limits, especially for nonstick surfaces. Wash utensils and work surfaces with detergent rather than relying on a water rinse. If you used gloves, remove them without touching the outside, then wash your hands.

Serving, pairing, and communicating heat

Tell diners when a dish contains a very hot chile, and consider serving extra chile on the side. Dairy foods can ease the sensation of oral burn for many people because casein helps disperse capsaicin. Water is less effective and may spread the sensation around the mouth.

A dairy accompaniment, such as yogurt or sour cream, can help balance a spicy meal. Fat-containing foods may also spread or moderate the perceived heat, but they do not remove capsaicin from the dish. Adding more sauce or liquid can dilute the flavor and heat per spoonful, yet it does not guarantee a mild result.

If a meal turns out hotter than intended, offer dairy and serve the chile portion with more of the other food, if available. For future batches, use less chile or keep it separate. Labeling a dish as very hot is a simple way to let others decide how much to serve themselves.

Practical kitchen scenarios

These examples show how to use the chart without treating it as a precise prediction. In each case, the key is to begin with less chile than you think you may need, then taste the cooked food and adjust in small steps.

• For a mild stuffed-pepper dish: A poblano is a reasonable starting choice. Remove the ribs and seeds if you want to reduce the heat further.
• For salsa with a jalapeño: Add part of the pepper first, mix, then taste. If you use serrano instead, begin with less.
• For a stew with habanero: Add a small piece, cook, and taste before adding more. Do not assume the full pepper is needed.
• For a dish with tomato or vinegar: Use stainless steel, enamel, or intact food-safe nonstick cookware. Avoid a long acidic simmer in unlined aluminum or copper.

A common mistake is adding an entire pepper based only on a chart. Since actual heat can vary within a cultivar and batch, that can lead to an overly hot dish. A small first addition gives you a chance to adjust before the heat builds.

Frequently asked questions

Which chile pepper is the mildest on this chart?
A bell pepper has 0 SHU and no chile heat. A poblano is also relatively mild, at about 1,000–2,000 SHU.

Is a serrano hotter than a jalapeño?
Usually, yes. Serranos are listed at about 10,000–23,000 SHU, compared with 2,500–8,000 SHU for jalapeños. Individual peppers vary.

Are chile seeds the hottest part?
The inner placental tissue holds much of the capsaicinoids. Seeds are often hot because they contact that tissue.

Does cooking make a chile less hot?
Not in a predictable way. Cooking changes aroma and texture, but it does not reliably remove capsaicin.

Does removing the seeds reduce heat?
It may reduce the heat added, especially if you also scrape out the inner ribs. It cannot guarantee a mild result.

How can I make a dish less spicy while cooking?
Use less chile at first, cook the dish, taste a small sample, and add more in small amounts if needed.

What should I do if my mouth burns after eating chile?
Dairy may help ease the sensation because casein helps disperse capsaicin. Water is less effective and may spread it.

How should I clean up after cutting hot peppers?
Wash your hands, knife, and board with detergent and water. Avoid touching your eyes or face before washing.

Which cookware is best for tomato or vinegar dishes with chiles?
Stainless steel, enamel, or intact food-safe nonstick cookware are suitable. Avoid prolonged acidic contact with unlined aluminum or copper.

How hot is a ghost pepper?
It is commonly reported at about 800,000–1,000,000 SHU. Individual peppers vary, so start with a very small amount.

(This article was written by one of our staff writers, Daniel M. Whitaker. Visit our Meet the Team page.)