Chilli oleoresin looks like a single commodity and behaves like two. Everything that goes wrong in buying it — mismatched quotations, formulations that come out the wrong colour, consignments stopped at a border — traces back to treating one number as though it described the whole product.
Two Independent Specifications
Chilli oleoresin carries two things a buyer might want, and they come from unrelated constituents:
| Pungency | Colour | |
|---|---|---|
| Comes from | Capsaicinoids | Carotenoids (capsanthin, capsorubin) |
| Measured as | Capsaicinoid % / SHU | ASTA colour value |
| Method | HPLC | ASTA spectrophotometric |
| Predicts the other? | No | No |
This is why paprika oleoresin exists as a separate product: it is the same genus processed for colour with the heat effectively absent. A material can be intensely pungent and pale, or deeply coloured and mild. Specify both numbers.
How SHU Is Actually Derived
The Scoville scale began as a sensory panel method. Modern practice does not work that way: total capsaicinoids are measured by HPLC and converted to SHU using a stated conversion basis.
So the capsaicinoid percentage is the primary measurement and the SHU number is derived from it. That matters when comparing quotations — a headline SHU whose derivation is not stated cannot be compared reliably with one that is. Ask for the capsaicinoid figure and the conversion basis, not just the Scoville number.
The Carrier Question
Grades standardised to a nominal SHU are generally high-strength oleoresin diluted with a carrier to hit that figure.
Two materials quoted at the same SHU can therefore contain quite different amounts of actual oleoresin, and will differ in viscosity, dispersion behaviour and flavour carry-over. Require the carrier named with its inclusion level. Without it you cannot compare two quotations, and switching supplier at the same nominal SHU can change how your product behaves.
Sudan Dyes: Test For Them
The compliance issue that defines this ingredient.
Sudan dyes are illegal industrial azo colourants with a documented history of use to enrich the appearance of weak or faded chilli material. Their discovery in chilli products prompted large-scale product withdrawals in Europe and led to sustained official import controls on chilli and chilli-derived products from a number of origins.
Practical consequences for a buyer:
- Sudan I–IV screening is a standard expectation on chilli oleoresin, not a special request;
- Consignments may face increased official controls at the EU border depending on origin and the current listing — check the position for your destination before shipping rather than after;
- A supplier who does not routinely screen is not equipped for this trade.
Residual Solvent
Every oleoresin is solvent-extracted, which makes residual solvent the defining quality control rather than a footnote.
Permitted solvents and maximum residues are set by the destination market and differ by solvent class. Require the solvent to be named and tested by GC per batch — if it is not named, you cannot check the material against your own market's rules.
Choosing a Grade
| Application | Typical grade | Watch |
|---|---|---|
| General seasoning, sauces | Low heat, 40k–100k SHU | ASTA colour contribution |
| Snack seasoning | Medium, 100k–250k SHU | Dispersion in dry blends |
| Hot sauces | High, 250k–500k SHU | Carrier and dosing accuracy |
| Speciality / industrial | Ultra high, 500k–1M SHU | Handling and worker safety |
| Colour without heat | Paprika oleoresin | Different product entirely |
Handling
Store cool, dark and tightly closed below 25°C — carotenoid colour fades with light exposure even though pungency is more stable, so poor storage costs colour value first. High-capsaicinoid grades are strongly irritant to skin, eyes and airways; handle with appropriate protection and brief anyone downstream.
What to Require
- Total capsaicinoids by HPLC, with the SHU conversion basis stated;
- ASTA colour value, reported separately;
- Sudan I–IV screening, reported as not detected;
- Solvent named and residual level tested by GC;
- Carrier named with inclusion level;
- Aflatoxins and ochratoxin A, heavy metals by ICP-MS;
- Pesticide residues to EU MRL where the destination requires;
- Full microbiological panel.
SV Botanica supplies chilli oleoresin from Guntur and Byadgi material against all of the above. Send your target SHU and ASTA and we will quote the right grade.
Source Heat- and Colour-Declared Chilli Oleoresin from India
Capsaicinoids by HPLC · ASTA colour declared · Sudan dyes screened · residual solvent per batch · CoA-backed · samples for qualified buyers