Indian Spices · Dry Red Chilli
Understanding ASTA Colour Value
Colour is one of the first things a buyer notices, and ASTA colour value gives it a testable number. This guide explains what it measures and how to use it in a specification.
What ASTA colour value measures
ASTA colour value is a standardized method (developed by the American Spice Trade Association) for measuring the red colour extract of chilli and paprika products, expressed as a numeric value. Higher values generally indicate a more intense red colour extract.
Why buyers reference it
Buyers sourcing chilli for colour-sensitive applications (such as oleoresin extraction, food colouring, or products where visual appearance is a key selling point) commonly specify a minimum ASTA value as part of the product specification.
ASTA colour value and pungency (SHU) are independent parameters — a chilli can be high in colour and moderate in heat, or vice versa. Buyers needing both should specify each separately.
Using it in a specification
As with other quality parameters, agree a specific ASTA value or range in writing, along with which lab and method will verify it, rather than relying on a general description like 'good colour' (see the Product Specification Protocol).
Key Takeaways
- ASTA colour value is a standardized, testable measure of red colour extract intensity in chilli and paprika.
- Colour (ASTA) and pungency (SHU) are independent parameters — specify both if both matter to your application.
- Agree a specific ASTA value/range and the testing method in writing, not a general colour description.
FAQ
Does a higher ASTA value mean a hotter chilli?
No — ASTA colour value measures colour extract intensity, not pungency. Colour and heat are independent parameters, so a high-ASTA chilli is not necessarily high-SHU, and vice versa.
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