Buyers new to non-basmati rice often ask why the same variety is quoted at two different prices, or why one lot cooks fluffy and another sticks. The answer is usually the process, not the paddy. This note explains what parboiling does at the mill and what it means for the rice you receive.
What parboiling is
Parboiling is done on paddy, before the husk is removed. The paddy is soaked in water, steamed under controlled conditions, and then dried back to milling moisture. Only after that does it go to the de-husking, whitening and grading line. At our mill this happens on the INDUSS parboiling plant, with the drying and the Thermax boiler fired on rice husk from our own processing, then the Satake milling line and the Sortex colour sorter.
Raw rice skips the soaking and steaming. The dried paddy goes straight to milling.
What changes in the grain
Hardness and brokens. Steaming gelatinises the starch inside the kernel. When it dries, the grain is harder and less likely to crack during milling, so parboiled lots normally give a higher head-rice yield and fewer brokens than raw rice from the same paddy. This is one reason parboiled rice is the default for many bulk and institutional buyers.
Colour. Parboiled rice is slightly amber or off-white compared with the bright white of raw rice. The degree depends on soaking time and steaming; a lighter parboil gives a paler grain. This is a specification point — say what colour range your market accepts.
Cooking. Parboiled rice cooks firmer and the grains stay separate. It tolerates holding and reheating better, which is why it suits canteens, hostels, caterers and PDS-type supply. Raw rice cooks softer and stickier and is preferred in markets that eat it that way.
Nutrition and storage. During soaking, some of the vitamins and minerals in the bran move into the kernel, so parboiled rice retains more of them after polishing. The harder grain also stores well and resists insect damage better than raw rice.
What it means for price and by-products
Parboiling adds energy, water and time to the process, but recovers more whole rice from each tonne of paddy. Depending on the crop and the market, the two effects can offset each other or not; this is why parboiled and raw quotations for the same variety can move differently through the season. The process also changes the by-products: parboiled bran has a higher oil content and is sold separately to extraction units, and the husk goes back into the boiler.
Which one to ask for
If you are supplying institutions, government channels, caterers, or export markets in West Asia and Africa, parboiled is normally the right starting point. If your buyers cook rice soft and eat it fresh, raw rice may fit better. If you are not sure, tell us the end market and we will suggest a specification. Both are milled on the same site at Ghentugachhi and can be quoted side by side through the enquiry form.