How Oats Are Made in India: Factory Process and Machinery

Oats are made in a factory by cleaning the grain, removing the hull, heat-treating the kernel so it does not go rancid, and then cutting or rolling it into the product you sell. That is how oats are made in India too, with one difference: India grows its oats mainly as fodder and imports a rising volume of raw grain, so sourcing matters as much as the machines. Steel-cut oats stop after cutting. Rolled and quick oats add steaming and flaking.

Two steps decide whether a mill earns money. The dehuller, the machine that strips the hull, sets your yield. The kiln, a steam and heat chamber, sets your shelf life. A plant that gets both right can sell groats, steel-cut or rolled oats from one front end, and add flour later. This guide sits within our food processing business ideas.

How are oats made in India, step by step?

The order below follows the process described in the British Journal of Nutrition; mills vary in the details.

1. Clean. A magnetic separator takes out metal and screens remove large and small debris. An aspirator lifts out light material and a dry stoner removes stones.
2. Grade. Perforated cylinders sort the oats by width, so similar kernels reach the dehuller together.
3. Dehull. A rotating finned disc throws oats against impact rings to break off the hull. Grain at 12 to 13% moisture dehulls best. The machine runs until about 85% of the oats have lost their hulls, because pushing further breaks groats. Table separators return the rest.
4. Kiln. Live steam and then heat inactivate the enzymes, mainly lipase, that turn the 6 to 8% fat in oats rancid. Moisture ends near 10%.
5. Cut (steel-cut only). A rotary granulator cuts each groat two to four times and a shifter removes the fines.
6. Flake (rolled and quick only). Steam adds 3 to 5% moisture over 20 to 30 minutes, rollers flatten the groats, and the flakes are dried back to 10 to 12% moisture.
7. Sieve and pack. Check moisture and fines against your buyer's specification before bagging; see the packaging ideas for pack choices.

Which oat product should your plant make?

The product fixes which machines you buy after the kiln. Steel-cut needs the least added equipment: no steam conditioner, rollers or flake dryer.

Start with groats and steel-cut if you have no steady steam supply. Add flaking once a bakery or snack buyer, such as those in the biscuit, bakery or snack food trades, commits to volume.

What machinery does an oats mill need?

Specify the dehuller and kiln first, because they set yield and shelf life.

Plan for hulls, which are 28 to 32% of the oat. The same paper notes they have been used as biomass fuel in power plants, so line up a buyer before you fill a store.

Where does a mill in India get its oat grain?

India's fodder oats cover about 0.25 million hectares, led by Uttar Pradesh (34%) and Punjab (20%), according to a 2025 Indian Farming article from ICAR. That is a fodder crop, so a mill should not assume local milling-grade grain at volume. The Australian Export Grains Innovation Centre (AEGIC) reports that India's raw oat imports rose five-fold in a decade, with Australia the main supplier and a 0% duty on raw oats.

Rolled oats are taxed differently. The same November 2025 review lists a 30% duty on rolled and flaked oats from Australia and 0% from Sri Lanka, which is gaining share. A mill that flakes oats competes with duty-free Sri Lankan flakes, so confirm today's rates before you price.

Buy to a specification. The FSSAI standard for oats, reproduced on a NIFTEM page, allows up to 14% moisture, 1% foreign matter and 3% damaged grain, with a minimum test weight of 46 kg per hectolitre. Dehulling works best at 12 to 13%, so contract at 13% or below.

What does an oats plant cost, and what will each tonne yield?

We found no sourced capital cost for an Indian oats plant, so none is quoted here. The cost swings on three items: the kiln, the flaking line and the steam boiler. Ask each maker to quote the dehuller, kiln, cutter and flaker separately for a stated tonnes a day, so phase one can drop the flaker.

Yield is the number you can fix now. Groats are 68 to 72% of the kernel. So 1 tonne of grain gives at most 680 to 720 kg of groats, before breakage and kiln loss. Groat cost per kg is therefore at least 1.4 to 1.5 times the grain price per kg.

Approvals are routine for a food plant:

• Registrations: company, Udyam and GST come first.
• Food licence: the plant needs an FSSAI registration or licence, and the class depends on your size, so confirm it with your state food safety office.
• Local permissions: ask your state pollution board whether the unit needs consent, and your state factories department about the steam boiler.

What to do before you order machines

1. List three buyers by product (groats, steel-cut, flakes or flour) and ask each for its moisture and shelf-life specification.
2. Get written grain quotes at 13% moisture or below, with test weight and foreign matter stated, for imported and domestic lots.
3. Rerun the groat cost at 68% and 72% yield with each quote.
4. Run a trial lot through a dehuller and kiln at a mill that will rent time, and send the output to your buyer's lab. The contract manufacturing guide covers how to test a market this way.
5. Compare how a neighbouring cereal is handled in the millet processing guide.
6. Put the numbers into a detailed project report a lender can read.

Frequently asked questions

Are oats made from wheat or barley?

No. Oats are the grain of Avena sativa, a separate cereal. The FSSAI standard defines oats as the dried mature grains of that plant. Wheat and barley are different crops, and the standard limits other edible grains in an oat lot to 3%.

Where does India get its oats from?

Increasingly from abroad. AEGIC reports that India's raw oat imports rose five-fold in a decade, with Australia the main supplier. India's own oat area, about 0.25 million hectares, is mostly fodder. Raw oats entered at 0% duty in the review we read, so check the current rate with a customs broker.

What is the difference between steel-cut, rolled and quick oats?

Steel-cut oats are groats chopped two to four times. Rolled oats are groats steamed and flattened to 0.51 to 0.76 mm. Quick-cooking oats are rolled thinner, 0.36 to 0.46 mm, so they cook faster. All three start from the same cleaned, dehulled and kilned groat.

What is the cost of 1 kg of oats?

We found no official price series, and shelf prices vary by brand and pack. What moves the price is grain cost, the 68 to 72% groat yield, the extra steaming and drying for flakes, and import duty: AEGIC lists 30% on Australian rolled oats and 0% on Sri Lankan. Check current shelf prices before you set yours.