Curcumin Content, Realistically
Curcumin is the compound responsible for turmeric's colour and for most of the interest in its properties. Commercially available Indian turmeric generally runs between roughly 2% and 5.5%. Anything advertised far above that range in whole or ground form should prompt a request for the laboratory method used, because results vary with the analytical method as well as with the material.
The figure moves with growing region, harvest window and post-harvest handling. Erode turmeric is sought precisely because it reliably sits at the upper end. Our own lines run 4.0%–5.5% for raw fingers, 3.5%–4.8% for polished, and 3.0%–5.0% for powder standardised to an agreed band.
One practical point: ask whether the quoted figure is a batch result or a category typical. A batch result belongs to the material you will receive. A category typical belongs to nothing in particular.
Which Form to Buy
Raw fingers are the least processed form and carry the highest curcumin, because nothing has been polished off the rhizome. They suit buyers who mill or extract themselves and want control of the grind, and they keep their aroma far longer than ground material.
Polished turmeric has had the rough outer skin tumbled off for a cleaner, more uniform appearance. It costs a fraction of a percent of curcumin and suits retail and consumer packing, where the rhizome is visible to the end buyer.
Powder is milled to a specified mesh with curcumin standardised to a band. It is the right choice when you are packing to a label claim and need consistency between deliveries more than a high figure on any single one.
HS Codes and Customs Classification
Turmeric sits under heading 0910.30 whether it ships whole or ground — the heading covers both. Extracts and oleoresins leave the spice chapter entirely and are classified under 1302.19, which usually attracts a different duty rate. Misclassifying an extract as a ground spice is one of the more common and more expensive clearance errors.
Your customs broker will apply the destination country's full tariff line, which extends the six-digit international code with national digits. The six digits above are the part that is the same everywhere.
| Product | HS Code |
|---|---|
| Turmeric, whole (fingers or bulbs) | 0910.30 |
| Turmeric, ground (powder) | 0910.30 |
| Turmeric extracts and oleoresins | 1302.19 |
| Turmeric essential oil | 3301.29 |
European Union Import Requirements
Contaminant maximum levels for spices are set by Commission Regulation (EU) 2023/915, which replaced Regulation (EC) No 1881/2006. It governs mycotoxins — aflatoxins and ochratoxin A — and heavy metals including lead and cadmium. Pesticide residues are governed separately by Regulation (EC) No 396/2005, which is also where the ethylene oxide limit that triggered widespread spice recalls sits.
Unauthorised colouring is the other recurring cause of refusal. Sudan I to IV are industrial dyes with no permitted food use, and consignments are screened for them independently of the mycotoxin testing.
Consignments may also be subject to increased official controls at the border under Regulation (EU) 2019/1793, which lists products and origins for heightened checks and is amended regularly.
Maximum levels are revised periodically. Always check the current consolidated text of the relevant regulation, or ask us for the limits applied to your destination market at the time of shipment.
United States Import Requirements
Imports fall under the FDA's Food Safety Modernization Act. The practical obligation sits with the importer of record: under the Foreign Supplier Verification Programs rule you must verify that your supplier produces food to a standard equivalent to US requirements, and keep the records that show it. Prior Notice must be filed before the shipment arrives, and the facility must be registered with the FDA.
Salmonella is the dominant microbiological concern for spices in the US market, and the FDA also applies defect action levels covering foreign matter. A supplier who can hand you per-batch microbiological results makes your FSVP file straightforward rather than an annual scramble.
Middle East and Other Markets
Gulf market buyers commonly require Halal certification, and several markets require certificate of origin attestation. Requirements differ by country and change, so confirm the current pack with your importer or clearing agent before the container is booked.
Storage and Shelf Life
Turmeric does not spoil quickly — it degrades quietly. Colour, aroma and curcumin all fade under the wrong conditions, and the material can look acceptable long after it has stopped meeting the specification you bought.
Hold storage below 25°C at a steady temperature, keep relative humidity under 65%, use dark or opaque containers to protect colour, and maintain steady air circulation. Fluctuating temperature is the main enemy: it drives condensation inside the sack, which is where mould starts. Stored correctly, whole turmeric holds quality for roughly 12 to 24 months from harvest; ground material loses aroma faster.
How to Read a Supplier’s Offer
If a supplier can answer all seven, you are buying a specification. If they can answer three, you are buying a promise.
- Is the curcumin figure a batch result or a category typical? Ask which.
- Is there a third-party laboratory report, and does it name the batch you are being offered?
- Which region and harvest window did the material come from?
- What is the moisture figure, and is it within 8–12% for whole material?
- Are heavy metals, pesticide residues and aflatoxin covered, tested against your destination market's limits?
- Is the HS code on the proforma the right one for the form you are buying?
- Can the supplier trace the lot back to a farm, a processing method and a date?