A complete, photographed walkthrough of the 6-stage Guar Gum production process at B.D. Guar's ISO 9001:2015 & ISO 22000 certified plant in Kalol, Gujarat — 12,000 MT annual capacity, exporting to 50+ countries.
Quick Answer
How is Guar Gum manufactured?
Guar Gum is manufactured in a 6-step process: (1) guar seeds are cleaned and sorted, (2) dehusked to separate hull and germ from the endosperm, (3) endosperm splits are milled into fine powder under controlled temperature, (4) screened into mesh grades (100–400), (5) quality tested for viscosity, moisture, ash, protein and microbiology, (6) packaged and dispatched. B.D. Guar operates an ISO 9001:2015 certified facility in Kalol, Gujarat with 12,000 MT annual capacity.
Guar Gum is a natural galactomannan polysaccharide extracted from the endosperm of Cyamopsis tetragonoloba — the cluster bean. Three distinct physical forms exist along the production chain: whole guar seeds, refined guar splits, and finely milled Guar Gum powder.
Each form has its own commercial market. Seeds are traded by farmers and arhatiyas; splits are exported as a semi-processed commodity; and powder — the highest value-added form — is sold globally as food additive E412, oilfield viscosifier, and industrial thickener.
Learn more about each form in our guides to Guar Splits, Food-Grade Guar Gum, and Oil Drilling Grade Guar Gum.
Every B.D. Guar batch passes through the same six controlled stages. Process parameters are logged digitally and held for a minimum of three years for full traceability.
Raw guar seeds (Cyamopsis tetragonoloba) are sourced directly from contract farmers in Rajasthan and Gujarat, India. Seeds are cleaned to remove foreign matter, broken seeds, dust, and metallic debris using vibrating screens, de-stoners, aspirators, and magnetic separators. Cleaned seeds must achieve ≥99.5% purity before they advance to dehusking.
Cleaned seeds are conditioned with mild heat (60–80 °C) to loosen the brown hull and embryo. Differential roller dehuskers fracture the seed coat and separate the husk and germ from the endosperm. The two pale-yellow endosperm halves — called guar splits — contain 78–85% galactomannan and are the primary feedstock for powder production.
Guar splits are fed into high-speed hammer mills, pin mills, or ultra-fine pulverizers and ground into Guar Gum powder. Milling chambers are jacketed and air-classified to keep product temperature below 70 °C — preventing thermal depolymerization of the galactomannan chain that would otherwise reduce viscosity and functional performance.
Ground powder is sieved through multi-deck vibrating screens to separate it into industry-standard mesh grades — 100, 200, 300, and 400 mesh (US Standard). Each cut is collected, tested, and stored separately. Oversize particles are automatically recycled back to the mill for re-grinding, ensuring zero process waste.
Every batch undergoes a 12-parameter quality release protocol: Brookfield viscosity (1% & 2% solution, RVT spindle), moisture (≤12%), protein (≤5%), ash (≤1%), acid-insoluble residue, pH, particle size distribution, gum content, and microbiology (TPC, yeast & mould, E. coli, Salmonella). Only batches meeting customer specs and ISO 22000 limits are released for packing.
Approved powder is packed in 25 kg multi-wall kraft paper bags with PE liners, 50 kg HDPE bags, or 1 MT food-grade FIBC jumbo bags inside a positive-pressure clean room. Every bag carries a unique batch number, manufacture & expiry date, and QR-coded COA. Pallets are stretch-wrapped, fumigated when required, and containerized for export to 50+ countries.
| Stage | Critical Parameter | Target Range | Control Method |
|---|---|---|---|
| Cleaning | Foreign matter | ≤ 0.5% | Magnetic separator + aspirator |
| Dehusking | Conditioning temperature | 60–80 °C | Steam jacket + PLC |
| Milling | Product temperature | ≤ 70 °C | Jacketed mill + air-classifier |
| Screening | Mesh accuracy | ± 2% on grade | Vibrating multi-deck sieve |
| QC Lab | Brookfield viscosity (1%) | 3,000–6,000 cps | RVT spindle 4, 20 rpm, 25 °C |
| Packing | Moisture pickup | ≤ 0.3% | Climate-controlled clean room |
Annual Capacity
Established
Location
Export Markets
Guar Gum is manufactured in a 6-step process: (1) guar seeds are cleaned and sorted, (2) dehusked to separate hull and germ from the endosperm, (3) endosperm splits are ground into fine powder under temperature control, (4) screened and graded by mesh size (100–400), (5) quality tested for viscosity, moisture, ash, protein and microbiology, (6) packaged and dispatched. The entire process is performed at controlled temperatures (<70 °C) to preserve galactomannan integrity and high viscosity.
Over 80% of the world's guar seeds come from India, primarily Rajasthan (70%), Gujarat (15%), and Haryana (10%). Pakistan, the USA (Texas), and parts of Africa also cultivate guar. India produces approximately 3–4 million tonnes of guar seeds annually. B.D. Guar sources directly from contract farmers in Gujarat and Rajasthan, eliminating middlemen and ensuring traceability from farm to bag.
Guar splits are the refined endosperm halves obtained after dehusking guar seeds — the intermediate raw material between whole seeds and finished Guar Gum powder. Splits contain 78–85% galactomannan, are traded internationally as a commodity, and are then milled into 100–400 mesh Guar Gum powder for end-use applications in food, oil drilling, textile, paper, and personal care.
Guar Gum refers to the galactomannan polysaccharide extracted from the endosperm of the guar bean (Cyamopsis tetragonoloba). Guar Gum powder is the commercial form — a fine, off-white free-flowing powder available in 100, 200, 300, or 400 mesh and viscosities from 2,000 cps to 6,000+ cps. Guar splits, flakes, and powder are all forms of guar gum at different processing stages.
B.D. Guar Pvt. Ltd. operates with an annual production capacity of 12,000 metric tonnes of Guar Gum powder. The ISO 9001:2015 and ISO 22000 certified manufacturing facility is located at Plot No. 11/B, G.I.D.C., Kalol, Gujarat 382725, India, and has been in continuous operation since 1983 — exporting to 50+ countries.
The complete manufacturing cycle from raw seeds to finished, packed powder takes approximately 8–12 hours per batch: cleaning (1–2 hrs), dehusking & splitting (2–3 hrs), milling (1–2 hrs), screening (1 hr), and quality testing (2–4 hrs). Packaging and dispatch add additional time based on order size and shipping mode.
Galactomannan is a temperature-sensitive long-chain polymer. If milling temperatures exceed ~80 °C, the polymer depolymerizes and viscosity drops irreversibly. B.D. Guar uses jacketed mills and air-classification to hold product temperature below 70 °C, which preserves the high molecular weight responsible for premium viscosity, hydration rate, and yield.
Yes. Our entire Guar Gum manufacturing line is 100% ETO-free (no ethylene oxide sterilisation), fully compliant with EU Reg. (EC) 1333/2008 for E412, FSSAI, FDA, Halal, and Kosher requirements. We use steam-based microbial reduction where required and validate every batch against EU, US, and Japanese residue limits.
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