Cassava Starch Manufacturing Plant Project Report (DPR) 2026

What is cassava starch?

Cassava starch, also called tapioca starch, is the native carbohydrate washed out of fresh Manihot esculenta roots, purified and flash dried to a white powder with about 12–13% moisture. Unlike cereal starches, it carries almost no protein or fat, so it cooks to a clear, bland paste with high viscosity at a lower gelatinization temperature, which is why food formulators and paper mills value it.

It trades under Harmonized System code 1108.14, manioc (cassava) starch. Plants usually sell three commercial grades:

• Food grade, used in snacks, noodles, bakery fillings, dairy desserts, bubble tea pearls and as feedstock for glucose and maltodextrin.
• Pharmaceutical grade to pharmacopeia specifications, used as a tablet binder and disintegrant.
• Industrial grade for paper wet-end and surface sizing, textile warp sizing, corrugating and other adhesives, often converted further into oxidized, cationic and other modified starches.

Wet starch cake from the same line can also feed sago pearl production, a separate food product.

Cassava starch market overview and global demand

No cassava-specific market valuation is published by Credence Research, so this overview relies on dated trade indicators. Asia dominates both supply and demand. Thailand, the largest exporter, shipped 2.49 million tonnes of native tapioca starch in January to October 2025, below 2.65 million tonnes a year earlier, according to Thai customs data compiled by the Thai Tapioca Trade Association, with premium-grade starch quoted at USD 450–455 per tonne FOB Bangkok in early December 2025.

China, the largest importer, bought 2.35 million tonnes of cassava starch in January to May 2025, up 50.2% year on year, at an average USD 370.7 per tonne, down 31%, with Vietnam supplying about 49%, ahead of Thailand and Laos, Tridge reported from Chinese customs data. Vietnam earned about USD 1.26 billion from 3.9 million tonnes of cassava and cassava products in 2025, with China taking about 94% of the volume. Indonesia processes a large crop mainly for its own food and paper industries. Brazil produced about 539,000 tonnes of starch in 2020, according to Cepea, while Nigeria, the largest root grower, converts only a small share into starch.

Demand comes from paper and board, textile sizing, adhesives, sweeteners and processed food, the core of the industrial starch customer base, while the broader cassava market and corn starch set the substitution ceiling. The commercial risk is price volatility, not demand, as the 2025 price fall in China showed.

Cassava starch manufacturing process

Native cassava starch extraction is a purely physical wet process. It needs no steeping, sulfur dioxide or protein separation, which makes it simpler than corn wet milling, but it runs against a hard clock, because harvested roots begin to deteriorate within 24 to 48 hours.

Root reception, washing and rasping

Roots are weighed, tested for starch content, stripped of soil and stones in a dry drum, then peeled and washed in a paddle or rotary washer. A high-speed rasper tears the cell walls so starch granules can be released into water. Rasping efficiency decides how much starch leaves with the fiber, so blade condition is checked every shift.

Extraction and hydrocyclone refining

Centrifugal sieves separate the starch milk from the fibrous pulp in two or three counter-current stages. A desanding cyclone removes grit, and an 18- to 24-stage hydrocyclone battery then washes out fine fiber, soluble sugars, protein traces and cyanogenic compounds while concentrating the slurry. Fresh water enters at the last stage only, which keeps consumption to about 3–7 cubic meters per tonne of starch in modern lines.

Dewatering, flash drying and finishing

A peeler centrifuge or vacuum drum filter takes the refined slurry to a cake with roughly 35–40% moisture. A flash dryer suspends the cake in hot air for a few seconds, dropping moisture to 12–13% without gelatinizing the granules. The powder is cooled, milled, sifted to mesh specification, passed over a metal detector and packed in 25 kilogram bags or one-tonne bulk bags. Whiteness, viscosity, pH, ash and residual cyanide are tested per lot, because paper and food buyers reject on these parameters. Typical yield is one tonne of starch from 4.0–4.5 tonnes of fresh roots.

Cassava starch plant setup cost

The ranges below assume a greenfield plant producing 5 tonnes of starch an hour, about 120 tonnes a day from roughly 500 tonnes of fresh roots, over 300 operating days, or about 36,000 tonnes a year, at 2026 prices. An international turnkey estimate puts total capital expenditure at about USD 7–15 million, an order-of-magnitude figure that varies with country, vendor mix and automation level. The full report can be customized to any country.

Plant and machinery account for the largest share, about 45%, covering the root handling line, rasper, sieves, hydrocyclones, centrifuge, flash dryer and packing. Civil works take about 15%, with long wet-process halls on acid-resistant flooring. Utilities such as power supply, hot air generator, water storage and compressed air take about 10%.

Example cost row, land and site

A starch unit of this size needs about 4 to 6 hectares for root yards, pulp handling and effluent lagoons. Land and site development take about 8% of CapEx, or roughly USD 0.5–1.2 million, a figure that reflects an assumed rural industrial site in a Southeast Asian, South Asian or Latin American cassava belt. A comparable site in the United States or the European Union would cost several times more, but few starch plants are built there because roots cannot travel far.

Effluent treatment and biogas

At 3–7 cubic meters of wastewater per tonne of starch, the plant must treat about 360–840 cubic meters a day of acidic, high-organic water; a 2020 study of sago and starch factories in southern India found untreated effluent at pH 4.3–5.2 with free cyanide of 1.2–5.2 mg per liter. An anaerobic reactor or covered lagoon with biogas piped to the dryer takes about 12% of CapEx. Working capital takes about 6% and pre-operative costs and contingency about 4%.

Roots dominate operating cost, at about 70–80% of the total. Fuel and power, labor, packaging and effluent handling make up most of the balance.