With thousands of chilli varieties available, choosing the right one for your dish can be overwhelming.
Each chilli pepper has its own unique balance of heat, flavour, and use in cooking. Some are mild and fruity, while others bring serious heat.
In this guide, we break down some of the most common chilli peppers you’ll find in supermarkets and how to use them in your cooking.
Cayenne Chilli Pepper
The Cayenne chilli is one of the most widely recognised hot chillies, known for its long, slender shape and moderate heat.
Originally named after the Cayenne River in French Guiana, it is now grown commercially across the world, including in the United States, Africa, India, and Mexico.
Key characteristics:
- Heat level: 30,000 – 50,000 SHU
- Shape: long and thin
- Growth: plants can reach up to 1 metre tall
- Yield: up to 40 pods per plant
Best uses:
Cayenne chillies are commonly dried and ground into powder, or used fresh in sauces and spicy dishes where a clean, sharp heat is needed.
Serrano Chilli Pepper
The Serrano chilli originates from the mountainous regions of Mexico, with its name meaning “from the mountains.”
It’s a step up in heat from the jalapeño, making it a popular choice for fresh salsas.
Key characteristics:
- Heat level: 10,000 – 20,000 SHU
- Shape: cylindrical with a blunt tip
- Colour: green when unripe, red when mature
- Yield: up to 50 pods per plant
Best uses:
Serrano chillies are ideal for:
- fresh salsas (like pico de gallo)
- sauces
- finely chopped toppings
Jalapeño Chilli Pepper
One of the most popular chillies worldwide, the Jalapeño is known for its balanced heat and versatility.
Named after the city of Jalapa in Mexico, this chilli has been cultivated for thousands of years and is now a staple in many cuisines.
Key characteristics:
- Mild to moderate heat
- Thick-walled pods
- Green when immature, red when fully ripe
- Often shows “corking” (small cracks on the skin)
👉 Corking does not affect flavour — in fact, many consider it a sign of a well-developed chilli.
Best uses:
- fresh in salsas
- sliced for nachos
- stuffed (jalapeño poppers)
- pickled or canned
Orange Habanero
The Orange Habanero is often considered the benchmark for flavour and heat among chilli enthusiasts.
It’s known for its intense heat and fruity, tropical flavour profile.
Key characteristics:
- Lantern-shaped pods
- Green when immature, bright orange when ripe
- Grown in Mexico, Belize, Costa Rica, and the US
- High heat level
Best uses:
- hot sauces
- salsas
- fermentation
- adding depth and heat to cooked dishes
How to Choose the Right Chilli Pepper
When selecting a chilli, consider:
- Heat level → how spicy you want the dish
- Flavour profile → fruity, smoky, sharp
- Cooking method → fresh, roasted, fermented
👉 The right chilli enhances flavour, not just heat.
Working with Chillies at Scale
If you’re making sauces or cooking regularly with chillies, consistency becomes important. Using a smooth chilli paste can help maintain flavour and heat across batches without the variability of whole chillies.