What Is Aji Amarillo? (Scoville Heat Guide)

Aji amarillo is a Peruvian yellow-orange chili from the species Capsicum baccatum. It is commonly rated at 30,000–50,000 Scoville Heat Units (SHU), but each pepper or paste can vary. Expect a fruity, tropical flavor with real heat. Start with a small amount, taste, then add more to suit your dish.

If you are deciding whether to buy fresh peppers, frozen ones, or a jar of paste, the label alone may not predict how hot your meal will be. Heat varies from one batch to another, so using a measured, gradual approach can help prevent wasted ingredients and keep a dish enjoyable. That can mean long-term savings, especially if a specialty ingredient is hard to replace.

Below, I explain what the Scoville range means, how to handle and cook the pepper, and how to use it in Peruvian-inspired dishes without letting its heat take over.

Aji Amarillo Identification, Heat Range & Prep

Aji amarillo is a chili pepper in the species Capsicum baccatum. Its name means “yellow chili,” although ripe peppers are often yellow-orange to orange. It is known for fruity flavor and a notable level of heat, commonly reported as 30,000–50,000 SHU, with real variation between peppers and products.

What does 30,000–50,000 SHU mean?

Scoville Heat Units measure how much a chili’s capsaicin contributes to a hot sensation. Capsaicin is the compound that makes chilis feel hot. The familiar SHU range for aji amarillo is an estimate, not a promise that every pepper will fall at the same point.

The pepper’s cultivar, growing conditions, ripeness, and processing can all affect the heat you experience. A jar of paste can also differ from fresh fruit because brands may use different peppers and add ingredients such as salt or acid. Check the label, and do not assume a recipe’s stated amount will give the same result each time.

Aji amarillo is hotter than a bell pepper by a wide margin. For context, commonly cited ranges put jalapeños around 2,500–8,000 SHU, though those peppers also vary. Treat these figures as useful comparisons, not exact measurements of the pepper in your hand.

What does it taste like, and which form should you buy?

The flavor is often described as fruity, tropical, and mildly floral. Its heat is substantial, so it does not behave like a mild sweet pepper. When you choose a form, consider how much prep you want to do and how much control you need over the amount.

Fresh peppers are a good choice when you want to control the amount of pepper and prepare it yourself. Paste saves time, but its salt and acidity can affect a recipe. Frozen peppers offer another option when fresh fruit is unavailable. Whatever form you buy, begin with less than the recipe calls for if you are unsure of its heat.

How should you prep fresh aji amarillo?

Wash fresh peppers under running water, then dry them. If chili oils bother your skin, wear kitchen gloves while cutting. Remove the stem and cut the pepper open. The pale inner ribs, also called membranes or placental tissue, hold much of the capsaicin.

Removing the ribs and seeds can reduce the heat, but it may not make the pepper mild. Seeds are not the only source of heat; capsaicin-rich inner tissue matters too, and seeds can pick up capsaicin from contact with it. Keep some inner tissue if you want more heat. For a cautious first taste, use a small piece of flesh with the ribs removed.

Cooking Technique: Building Flavor and Controlling Heat

Aji amarillo works best when you build its flavor in stages. Cut, mince, or blend it, then cook it briefly over moderate heat rather than scorching it. Add fresh pepper or paste in small amounts, taste as you go, and adjust the balance without expecting other ingredients to remove capsaicin.

How do you add it without making a dish too hot?

For fresh pepper, remove the stem and prepare the ribs according to your heat preference. Mince or blend the pepper, then sauté it briefly in a little oil over moderate heat. Avoid burning it: scorched chili can taste bitter and may overpower the pepper’s fruitiness.

With paste, start with less than the recipe lists, especially if the brand is unfamiliar. Stir it into the dish, let the flavors combine, and taste before adding more. This step matters because a recipe quantity is only a starting point when pepper heat and paste strength vary.

Fat, sweetness, and acidity can help balance a dish’s overall flavor, but they do not erase capsaicin. Adjust them to make the sauce taste more rounded, not as a guarantee that the heat will disappear. If you are cooking for people with different heat preferences, keep some pepper or paste on the side.

Which cookware is suitable for an aji amarillo sauce?

Use food-contact-safe cookware such as stainless steel, enamel, or intact nonstick for cooking chili sauces. Prolonged cooking of acidic sauces in unlined aluminum or copper can cause interaction between the food and metal. Avoid using damaged nonstick cookware, and follow its care instructions.

A practical sequence is to warm a little oil over moderate heat, briefly cook the minced pepper or paste, and then add the remaining sauce ingredients. Keep the heat controlled so the chili cooks without scorching. If the sauce contains poultry, cook the poultry to an internal temperature of 74°C (165°F).

Illustrative kitchen scenarios

These examples show how to adjust your method; they are not fixed recipes. The point is to test the particular pepper or paste before committing a whole dish to its heat.

• Fresh pepper in a small batch: Remove the ribs, mince a small piece, and cook it with the other aromatics. Taste the sauce, then add more pepper only if you want a stronger kick.
• Paste in a family meal: Check the ingredient list and start with less than the recipe’s full amount. Once stirred in, taste before adding more, since paste can contribute salt and acid as well as heat.
• A sauce tastes hotter than expected: If you can, increase the quantity of the other sauce ingredients to spread the heat. A balancing ingredient may change how the sauce tastes, but it does not neutralize capsaicin.

Safe Storage, Handling & Cleanup

Safe handling helps protect your skin, eyes, and food. Refrigerate fresh peppers and opened paste at or below 4°C (40°F), and follow the product label for storage instructions. After cutting, wash your hands, tools, and surfaces with detergent, and avoid touching your face or contact lenses.

How do you handle and store it safely?

Wear gloves if your skin is sensitive to chili oils. After cutting the pepper, do not rub your eyes or handle contact lenses before washing your hands well. Capsaicin can cause intense irritation. Wash the knife, board, and other utensils with detergent after use, and clean the work surface.

Refrigerate fresh peppers and opened paste at ≤4°C (40°F). Keep leftovers covered and refrigerate them promptly. For a jarred product, follow the package directions, since ingredients and commercial processing differ. When preparing food for sale or service, follow local food-safety requirements as well as the label.

If a dish contains poultry, check its internal temperature with a food thermometer and cook it to 74°C (165°F). That temperature guidance concerns poultry safety; it does not measure chili heat or tell you whether a sauce will taste mild.

Serving Aji Amarillo in Peruvian-Inspired Dishes

Aji amarillo is used in Peruvian cooking for both its heat and its distinctive flavor. It can be blended into sauces or cooked into a dish, with the amount adjusted to suit the pepper or paste. Start with a restrained amount, then taste and build toward the level of heat you want.

It appears in dishes such as ají de gallina, a creamy chicken dish, and causa, a layered potato dish. It is also used in sauces and other preparations. These examples show why the pepper is more than a source of heat: its fruity character is part of the flavor profile.

For a new recipe, follow this simple order:

1. Check whether the recipe calls for fresh pepper, frozen pepper, or paste.
2. Prepare the pepper, removing inner ribs if you want to reduce its heat.
3. Add less than the full amount if the pepper or paste is unfamiliar.
4. Cook briefly over moderate heat, then taste the dish.
5. Add more in small steps until the heat and flavor suit the meal.

Conclusion and FAQ

Aji amarillo is a fruity, distinctly hot Peruvian chili, commonly reported at 30,000–50,000 SHU. That range is a guide, not a guarantee: peppers and pastes vary. Use a small amount first, taste before adding more, and store and handle the pepper with care.

Is aji amarillo very spicy?

Yes, it can be quite spicy. Its commonly reported range is 30,000–50,000 SHU, but actual heat varies by pepper and product. Start with a small amount and taste before adding more.

Is aji amarillo the same as yellow chili?

Aji amarillo translates as “yellow chili.” The ripe fruit is often yellow-orange to orange, and it belongs to the species Capsicum baccatum.

What does aji amarillo taste like?

It is often described as fruity, tropical, and mildly floral, with substantial heat. Its flavor can add more to a dish than simple chili burn.

Do the seeds make aji amarillo hot?

Seeds are not the only source of heat. Capsaicin-rich inner tissue contributes strongly, and seeds may pick up capsaicin by touching that tissue. Removing the ribs and seeds can reduce heat, but may not make the pepper mild.

Can I use aji amarillo paste instead of fresh pepper?

Often, yes, but the products are not identical. Paste may contain salt, acid, or other ingredients, so check the label and add it gradually. Adjust the rest of the recipe to account for those ingredients.

What can I use if I cannot find aji amarillo?

There is no exact substitute for its mix of heat and fruity flavor. If you choose another chili, its heat and flavor may differ, so begin with a small amount and taste before adding more.

How should I store opened aji amarillo paste?

Refrigerate opened paste at or below 4°C (40°F), unless its label gives different instructions. Follow the package directions and use clean utensils when taking paste from the container.

Is aji amarillo safe to cook in any pan?

Use food-contact-safe cookware such as stainless steel, enamel, or intact nonstick. Avoid prolonged cooking of acidic chili sauces in unlined aluminum or copper, which can interact with the food.

(This article was written by one of our staff writers, Julian R. Hayes. Visit our Meet the Team page.)