Table of Contents
What Are Crushed Red Pepper Flakes?
Crushed red pepper flakes are small, coarsely ground pieces of dried red chili peppers, typically made from cayenne peppers. They are a versatile spice used to add heat and flavor to a wide range of dishes, from Italian pasta sauces to Korean kimchi and beyond.

These flakes are created by drying ripe red chili peppers and crushing them into small, irregular pieces. Unlike chili powder which often contains blended spices, crushed red pepper flakes consist of pure dried chili peppers, providing a direct and intense heat profile. The coarse texture allows them to adhere well to food surfaces, making them ideal for sprinkling as a finishing touch or incorporating during cooking.
Spice Basics: Understanding Heat and Flavor
Crushed red pepper flakes typically measure between 30,000 to 50,000 Scoville Heat Units (SHU), placing them in the moderate heat category. This makes them significantly hotter than jalapeños (2,500-8,000 SHU) but milder than habaneros (100,000-350,000 SHU). The Scoville scale measures capsaicin concentration, the compound responsible for chili heat.
Chili Variety | Scoville Units |
---|---|
Cayenne Pepper | 30,000 - 50,000 |
Jalapeño | 2,500 - 8,000 |
Habanero | 100,000 - 350,000 |

Practical Tips for Using Crushed Red Pepper Flakes
- Sprinkle on top: Use as a finishing touch on pizza, pasta, or avocado toast for immediate heat development.
- Add early: Mix into sauces, soups, or stews during cooking for integrated heat distribution.
- Pair wisely: Complements bold flavors like garlic, olive oil, tomatoes, and cheese. Avoid delicate ingredients that may be overwhelmed.
- Adjust gradually: Start with small amounts and taste incrementally to control heat intensity.
- Store properly: Keep in an airtight container away from light and moisture to preserve potency for up to 2-3 years.

Buying Guide: How to Choose the Right Crushed Red Pepper Flakes
Key Selection Criteria
- Heat Level: Check Scoville range or "mild/medium/hot" labeling for desired intensity.
- Origin: Regional varieties affect flavor profile (e.g., Italian cayenne vs. Mexican ancho).
- Texture: Coarser flakes work best for finishing; finer textures suit baking or sauce integration.
- Purity: Ensure ingredients list only dried red chili peppers with no additives or fillers.

Top Product Recommendations
- Pelican Brand: Classic balanced heat, ideal for everyday cooking and beginners.
- Boca Grande: Florida-sourced with vibrant sweetness and moderate heat profile.
- Spice Islands: Consistent quality with standardized heat levels for reliable results.
Frequently Asked Questions
What exactly are crushed red pepper flakes?
Crushed red pepper flakes are dried and crushed red chili peppers, primarily made from cayenne varieties. Unlike chili powder which contains blended spices, they consist of pure dried chili peppers ground into coarse flakes for direct heat application.
How are crushed red pepper flakes different from chili powder?
Crushed red pepper flakes contain only dried chili peppers with no additional spices, while chili powder is a blend of ground chilies mixed with cumin, garlic powder, oregano, and other spices. Crushed flakes provide a purer, more intense heat with coarser texture.
How hot are crushed red pepper flakes?
Typically ranging from 30,000 to 50,000 Scoville Heat Units, crushed red pepper flakes fall in the moderately hot category. They are significantly hotter than jalapeños (2,500-8,000 SHU) but milder than habaneros (100,000-350,000 SHU), with variations based on pepper variety and growing conditions.
What are crushed red pepper flakes made from?
Primarily made from dried cayenne peppers, though some brands use blends including ancho, Fresno, or other red chili varieties. The specific pepper type determines both heat intensity and flavor nuances.
How should I store crushed red pepper flakes?
Store in an airtight container away from direct sunlight and moisture. Proper storage maintains potency for 2-3 years. Exposure to air, light, or humidity causes faster degradation of heat and flavor.
Can I make my own crushed red pepper flakes at home?
Yes, by drying ripe red chili peppers completely and crushing them using a mortar and pestle or food processor. Home-made versions may have slightly different flavor profiles than commercial products, but allow customization of heat levels by selecting specific pepper varieties.
Are crushed red pepper flakes the same as red pepper flakes?
Yes, "crushed red pepper flakes" and "red pepper flakes" refer to identical products. The terms are used interchangeably in cooking and on product labels, describing coarsely ground dried red chili peppers.
Conclusion
Crushed red pepper flakes are an essential kitchen staple that delivers precise heat control and vibrant flavor to countless dishes. Their versatility across global cuisines, from Italian pasta to Korean stir-fries, makes them invaluable for both casual cooks and professional chefs.
By understanding their heat profile, proper storage techniques, and application methods, you can confidently enhance any dish with the perfect balance of spice. Whether sprinkled as a finishing touch or integrated into cooking, these flakes offer a simple yet powerful way to elevate your culinary creations.
