Lakadong, and the curcumin mountain

Most turmeric, in most kitchens, in most countries, contains roughly two to three percent curcumin. Curcumin is the bright yellow polyphenol that turmeric is, in essence, for — the compound responsible for its colour, its anti-inflammatory reputation, and most of what wellness magazines have spent the last decade writing about. The number on a typical commercial turmeric is two-point-something. Two-point-something is fine.

Lakadong turmeric, grown in a small valley in Meghalaya's West Jaintia Hills, regularly tests between seven and nine percent curcumin. That is not a marketing claim — it is what a third-party laboratory assay turns up, consistently, year after year. It is, in the polite understatement of the agricultural literature, anomalously high.

The interesting question is why.

The answer is partly genetic — the Lakadong landrace is a specific cultivar that has been selected over centuries by Khasi and Jaintia farmers for, among other things, its colour. The deeper yellow corresponds, roughly, to higher curcumin content, and the deepest-yellow rhizomes have been retained as seed for replanting season after season. This is not laboratory breeding; it is the slow human eye choosing, over many generations, the brightest rhizome in the basket.

But the genetics alone do not explain the seven-to-nine percent. If you grow Lakadong cultivar in Maharashtra, or in Andhra, you will get a turmeric considerably richer than the local standard — but you will not get nine percent. The valley does the rest. The combination of altitude (around 1,000 metres), the iron-rich red lateritic soil, the cool nights of the post-monsoon curing months, and the unusually long fourteen-day on-plant sun-curing the Lakadong farmers practice before they even pull the rhizomes — these together produce the second half of the number.

Move the cultivar. Lose the soil. Lose the altitude. Lose the curing protocol. The number falls.

The Geographical Indication for Lakadong Turmeric was granted in 2024, after almost a decade of effort by the Meghalaya Basin Development Authority and the cooperative growers of the West Jaintia Hills. The application document, which is publicly available, is in many ways more interesting than most cookbooks. It documents not just the cultivar and the geography but the protocol — the precise sowing window, the inter-row spacing, the inter-crop with ginger that the soil seems to prefer, the hand-curing on the plant, the slow, off-fire drying after harvest, the long-storage in earthen pits which farmers here will tell you is what makes the colour come out properly over the first three months in the pit.

A GI is, in legal terms, a protection. In practical terms, it is a recipe — written down and witnessed, so that no one else can claim to make the same thing somewhere else.

The reason a kitchen should care about any of this — the reason the seven-to-nine percent is not just a wellness-magazine number — is that curcumin content is, in cooking, the dose-control variable. A teaspoon of two-percent turmeric and a teaspoon of nine-percent turmeric are not, functionally, the same teaspoon. The Lakadong, used with the same hand as commercial turmeric, will over-colour a dish, over-flavour a curry, and overwhelm a golden milk made with the proportions a Bangalore food blog will give you.

Use less. A quarter-teaspoon of Lakadong does the work of a full teaspoon of most commercial turmeric. The price-per-spoon evens out fast.

The deeper change, though, is in the taste. Higher-curcumin turmeric carries a slight bitterness on the finish — the same way a single-estate dark chocolate carries a slight bitterness that a milk chocolate does not. The trade is depth for sweetness, complexity for ease. The Lakadong wants to be paired with fat: ghee, coconut milk, full-cream dairy. It blooms there in a way it cannot in plain water.

The Lakadong belt produces, in a good year, perhaps two thousand tonnes — a rounding error against the global turmeric trade. The growers here are not poor in the way the popular Northeast story sometimes flattens everyone into being; they are skilled specialists working a difficult crop on difficult land, and the GI tag, properly honoured by the market, finally pays them at the rate the rhizome has always been worth.

What the kitchen receives, when it receives Lakadong, is not a wellness commodity. It is a fourteen-day on-plant cure, an altitude, a soil, a curing pit, and the eye of a farmer who, for several generations, chose the brightest rhizome in the basket. The percentage on the lab report is the closing line of a much older story.

— Barsha Prakash Choudhury writes from the brand desk at Kopahi.