Atta and Besan Adulteration: Chalk, Maida Mixing and Khesari

Atta adulteration is rarely poison. It’s usually a swap: refined maida or bran-stripped flour sold as chakki atta, a little chalk for weight, or cheaper flours in besan, including khesari dal, which you shouldn’t eat often. Home tests catch the crude cases only. The real fix is to buy grain and watch it milled, then store the flour well.

What actually happens to atta and besan?

Flour is cheap, so the cheats are small, a few rupees a kilo here and there, but they add up over a year because flour is the one thing on the shelf that almost every family eats at every single meal. Small, daily, invisible.

• Maida in “chakki atta”. Refined white flour costs less to handle and makes very soft roti. Mixed into a bag labelled chakki atta, it lowers the fibre you think you’re getting.
• Bran taken out, then sold separately. The choker (bran) has its own market, so some “whole wheat” atta has lost much of it.
• Excess bran, sand or chalk. Occasionally added for weight. Sand and grit usually come from poorly cleaned grain rather than deliberate mixing.
• Besan cut with cheaper flours. Pea flour and maize flour stretch gram flour. Khesari dal flour (Lathyrus sativus) is the concerning one.
• Yellow colour in pale besan, sometimes metanil yellow, a dye that isn’t allowed in food.

Why khesari in besan matters

Khesari is a hardy pulse that grows where little else will, surviving drought and poor soil that would kill a wheat crop, which is exactly why it has always been the food people fall back on in bad years. It contains a natural nerve toxin called ODAP. Eaten as a small part of a varied diet, it has been part of poor households’ food for centuries. Eaten as the main staple for months, especially in famine, it has caused lathyrism, a permanent weakness and stiffness of the legs.

A little khesari in your pakora batter won’t do that. The problem is that you don’t know it’s there, and you can’t tell at home; khesari flour looks and cooks much like besan. Only a lab can confirm it. How khesari turns up in daal itself is covered in fake or polished daal and khesari, and isn’t repeated here.

Atta adulteration test at home: what each check shows

Filters only.

1. Colour. Spread 2 tablespoons of atta on a white plate in daylight. Chakki atta is creamy to light brown with visible bran flecks. Pure white, flake-free flour sold as whole wheat is mostly maida.
2. Smell. Fresh atta smells mildly sweet and wheaty. Musty, sour or stale smells mean old or damp flour; don’t use it.
3. Water glass. Stir 1 tablespoon of atta into about 200 ml water in a clear glass and leave it 15 minutes. Bran floats; flour clouds the water and settles slowly. A gritty white layer that drops to the bottom within a minute points to chalk or sand.
4. Dough feel. Knead 250 g atta with about 160 to 180 ml water. Whole wheat chakki atta drinks water and feels slightly rough; it rests into a soft dough in 20 to 30 minutes. Maida-heavy flour takes less water, feels silky and stretchy, and gives a chewier, paler roti.
5. Grit. Rub a pinch of dry flour between your fingers near your ear. Real grit crunches. Fine flour doesn’t.

What these prove: an obviously refined flour, gross grit and very stale stock. What they can’t prove: a modest share of maida, a trace of chalk or anything chemical. A clean pass isn’t a certificate.

Besan milawat: honest checks

1. Colour. Good besan is pale, creamy yellow. A bright, even, sunny yellow is a warning sign for added colour.
2. Damp tissue. Press 1 teaspoon of besan onto a damp white tissue for a minute, then tap it off. A pale yellow mark is normal. A bright yellow stain that spreads suggests dye.
3. Texture. Real besan is fine and slightly clumpy. Maize flour feels grainier.
4. Smell. Raw besan smells beany and nutty. A flat, starchy smell can mean a lot of other flour.

None of these detects khesari. Not one. Skip viral acid tests: they need hydrochloric acid, which belongs in a lab.

How to check chakki atta purity: buy smarter

This beats every test you could do at home, because it moves the check from your kitchen counter, where you can only guess, to the moment the grain goes into the stone, where you can actually see it.

• Take your own wheat. Buy clean wheat, pick out stones and damaged grains, wash if needed and dry fully in the sun, then have it ground at a local chakki while you wait. You’ll see exactly what goes in.
• Besan the same way. Buy whole chana dal, check it for khesari’s flat, wedge-shaped grains, and have it ground in a small batch.
• Check the chakki. A clean stone, no heap of unknown flour being added, and a miller who doesn’t mind you watching.
• Packed atta: read the ingredients. “Whole wheat flour” alone is what you want. “Wheat flour” on its own often means refined.
• Grind small. A family of four uses roughly 5 to 10 kg atta a month. Grinding that amount at a time keeps flour fresh.

More on getting soft roti from the flour you’ve bought is in the chakki atta guide, and besan’s kitchen uses are in the besan cooking guide. Neither is repeated here.

Storing atta and besan so they stay clean

Whole wheat atta goes stale faster than maida because the germ, the tiny living part of each grain that maida leaves out, carries natural oils that slowly turn rancid in a warm kitchen and give old atta its bitter, cardboard smell. Heat speeds it. Keep flour in a dry, airtight steel or food-grade container, use a dry scoop, and never top old flour up with new. Damp, lumpy or musty flour goes in the bin, since mould can bring aflatoxin. For weevils and keeping insects out, follow weevil-proof atta and daal storage.

Myth: whiter atta is better atta

Wrong way round. White, silky flour sold as chakki atta has lost bran or been mixed with maida. People believe it because white roti looks refined and softer, and for years whiter flour was a status marker. Light brown with flecks is what you’re paying for.

Did you know?

• A stone chakki grinds more slowly and coolly than a roller mill, which is one reason chakki atta keeps more of the wheat’s germ and bran.
• Besan is ground from split chana dal (desi chickpea), not the large white Kabuli chickpea.

Atta and besan adulteration: questions

More flour and daal guides sit in Grains, Daals & Pulses.