India produces more rice than almost any other country on earth. And somewhere between the paddy field and the dinner plate, millions of tonnes get fractured during milling, too small to sell as whole rice, too starchy to ignore. This is broken rice, and for the past few years, India's ethanol industry has been quietly building an entire feedstock strategy around it.
That's not an accident. It comes down to intersecting pressures: rising ethanol blending targets, volatile maize prices, and the plain arithmetic of starch yield per rupee spent. This article explains why broken rice has become central to India's biofuel supply chain, what the market looks like today, and where things are heading.
Broken rice is a byproduct of milling, fragments that separate from whole grains during dehusking and polishing. It's not chemically inferior. It just doesn't look right for retail, so mills have historically sold it at a discount.
For ethanol production, that cosmetic defect is completely irrelevant. What matters is starch and broken rice delivers:
Starch content of 75–80% by dry weight, translating to strong ethanol yields per tonne
Priced 15–20% below whole maize, and significantly cheaper than wheat
Available in large, consistent volumes.
India's rice production was over 150 million metric tonnes in 2024–25, and the supply math becomes compelling. Rice milling generates an estimated 10–12 million metric tonnes of broken rice annually.
Even if ethanol manufacturing plants capture a fraction of that, they're working with a large and relatively stable feedstock base.
Broken rice has been available to distilleries for decades. What changed is the policy environment around ethanol.
E20 target achieved: 20% ethanol blending in petrol was advanced to the 2025–26 period, dramatically increasing the volume of ethanol India needs to produce.
Fixed procurement prices: Under the Ethanol Blended Petrol (EBP) Programme, ethanol from broken rice and damaged food grains is priced at approximately ₹60.32 per litre, a government-backed floor that de-risks investment
Interest subvention schemes: Financial incentives for new and expanding distilleries have attracted investors, many of whom specifically favour grain-based plants because of broken rice's cost profile
E30 roadmap in progress: The industry is already preparing for the next blending target, which will push ethanol demand even higher
The result is a demand curve that has moved sharply upward, and supply chains still catching up in places.
Three trends define the broken rice market for ethanol right now:
Most distilleries built or expanded in the past two years can switch between broken rice and maize based on seasonal price thresholds. When broken rice is cheap post-Kharif, plants run heavy on rice. When the differential narrows, they blend or shift. Procurement has become more dynamic and more competitive.
A notable shift in 2026 is the "15% fully broken" policy, encouraging mills to segregate high-starch fragments specifically for industrial buyers. This is pushing toward more standardised grades which matters for distilleries that need predictable starch content for consistent ethanol yields.
India's total ethanol production capacity exceeded 1,990 crore liters by 2025, with grain-based distilleries accounting for a growing share. The infrastructure is in place. The focus now for most producers is securing quality feedstock reliably, not whether to use broken rice at all.
Working with broken rice as a primary feedstock isn't frictionless. Here are the real challenges producers face:
Seasonal Availability
Supply peaks post-harvest, then dips sharply in lean periods
Long-term mill contracts; build inventory during Kharif and Rabi seasons
Quality Variation
Starch content varies by rice variety and milling process; affects yield without being visible
Rigorous incoming batch testing; work with suppliers offering certified grades
Storage Sensitivity
Broken rice absorbs moisture easily, encouraging mold and pest activity
Broken rice absorbs moisture easily, encouraging mold and pest activity
Market Competition
Poultry feed and food processing industries compete for the same supply
Stable offtake agreements; reliable payment terms to build supplier loyalty
The bottom line: "we'll buy it when we need it" is an increasingly risky procurement strategy as ethanol demand pulls prices higher.
Beyond economics, using broken rice for ethanol production aligns perfectly with India's sustainability goals.
Waste-to-Value Model: Broken rice is a milling byproduct with historically limited high-value applications. Redirecting it into ethanol production displaces fossil fuel consumption without creating new agricultural pressure. That's circular economy logic that actually holds up.
Emissions reduction: Ethanol from grain-based feedstocks reduces lifecycle greenhouse gas emissions by roughly 40–50% compared to petrol. On a national scale, that's a meaningful contribution.
Import substitution: Every litre of domestically produced ethanol reduces crude oil import dependency, a real benefit for India's foreign exchange position, particularly when global oil prices spike.
Co-product value: The fermentation process leaves behind Distillers Dried Grains with Solubles (DDGS), a high-protein animal feed actively needed by the livestock sector. Many plants also capture biogenic CO₂ for industrial and food-grade use. A well-run broken rice distillery produces fuel, feed, and CO₂, making the business model more resilient than one dependent on ethanol alone.
These benefits make broken rice not only a cost-effective choice but also a more sustainable one for the biofuel industry.
The demand trajectory is clearly upward, backed by policy commitments that aren't being reversed. But execution matters. Producers who've done well share these traits:
Secured backward integration with rice mills rather than relying on spot markets
Built multi-feedstock capability to avoid being locked into one grain
Invested in quality testing systems that give visibility into starch content before material enters the process
For investors, the key question is feedstock security. A distillery with a strong, diversified broken rice supply chain has a structurally better cost position than one buying on the open market and that advantage compounds as E30 targets pull demand higher.
For ethanol manufacturers, the challenge lies in securing quality supply and managing logistics. Edhas Biofuel supplies broken rice feedstock from its operations in Gujarat, with starch yield testing built into the supply process. For ethanol producers looking for consistent-grade broken rice with reliable delivery across India,