GrainEx INDIA

Attendees, exhibitors & solutions

Who this event is for

Industry trends

Key trends shaping this market and its wider industry.

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Frequently asked

Glossary

1

Roller mill

A milling machine that grinds wheat, maize or pulses between chilled cast-iron or steel rolls set at controlled gaps. A flour plant runs several roll stands in series (break, sizing and reduction passes) to separate bran from endosperm with minimum starch damage.

2

Break release

The share of endosperm freed from bran at each break roll pass in a flour mill. Millers tune roll gap and sifter balance to hit target release without over-grinding bran into the flour stream.

3

Plansifter

A stack of horizontal sieves that grades stock by particle size between milling passes. Sifter balance drives extraction rate, flour granulation and the amount of clean bran leaving the mill.

4

Chakki (stone mill)

A traditional stone-ground atta mill still widely used in India for whole wheat flour. The grind retains more bran and germ, so shelf life, colour and consistency differ from roller-milled atta.

5

Destoner

A gravity or vibration separator that lifts stones, glass and heavy impurities out of paddy, wheat or pulses before milling. Worn destoner decks are a common cause of downstream wear and broken grains.

6

Gravity separator

A vibrating deck with controlled air flow that separates grain by density, floating off light, immature and foreign kernels so only sound grain enters the mill.

7

Paddy parboiling

Soaking, steaming and drying paddy before milling so the starch gelatinises. Parboiling cuts broken grains and pushes vitamins into the endosperm, but soak temperature and final moisture must be tightly controlled.

8

Rubber roll husker

Twin rubber rolls running at different speeds that strip the paddy husk with minimal pressure on the grain. Roll gap and rubber hardness decide husking efficiency and the broken percentage going into polishing.

9

Rice polisher (whitener)

Friction or abrasive chambers that remove bran layers from brown rice. The number of passes and any water misting set whiteness, surface oil retention and head-rice yield.

10

Colour sorter

An optical sorter using cameras and compressed-air jets to reject discoloured, chalky, damaged or foreign grains. In rice and pulses it is usually the final quality gate before bagging.

11

Dal milling

Pulse processing that dehusks and splits grain into dal. Pre-milling conditioning (oil or water treatment), dehusking and splitter settings decide dal recovery and the brokens percentage.

12

Cryogenic grinding

Spice grinding with liquid-nitrogen cooling so volatile oils and colour survive the mill. Higher cost per kilogram, but valued for chilli, cumin, coriander and pepper where aroma retention is the selling point.

13

Milling yield / out-turn

Finished product obtained per unit of raw grain, quoted as a percentage. Head-rice out-turn and flour extraction rate are the commercial numbers buyers and millers negotiate against.

14

Moisture content

The water share in grain, measured at intake and again before storage. Excess moisture drives mould, insect attack and milling losses, so moisture meters are standard show-floor equipment.

15

Ash content

Mineral residue left after a flour sample is burnt, used in India as an indicator of bran contamination and flour grade. Lower ash generally signals a cleaner, more refined stream.

16

Pneumatic conveying

Moving flour, bran or grain through pipes on an air stream. Duct layout, air volume and filter sizing determine dust control, energy use and cross-contamination risk inside a mill.

17

Silo aeration

Forced air pushed through stored grain to hold temperature and moisture in check. Critical in Gujarat, where pre-monsoon heat can push grain in flat storage into fungal risk within weeks.

18

FSSAI

The Food Safety and Standards Authority of India, which licenses food businesses and sets contaminant, additive and labelling limits. Indian buyers at a milling show will routinely ask for licence numbers and test reports.

19

Head rice

Milled rice kernels that remain at least three-quarters of full length. Head rice, not total milled rice, is what most Indian rice buyers price and what sorter and polisher settings are tuned for.