Same grain, two grinding methods
Atta is the wheat flour used mainly for rotis, chapatis and parathas. Whatever it is called on the pack, the wheat starts out in much the same way: it is received, checked, cleaned and conditioned before grinding. The step that differs is the grinding itself, and that is where stone grinding and roller milling part ways.
How chakki (stone) grinding works
The process
In a chakki, the grain is crushed and ground between two stones. The whole grain goes in together, so the bran, the germ and the endosperm are ground into a single flour rather than separated first. It is the method behind the traditional home chakki, scaled up for a mill.
The details, such as the type of stone, how fast it turns and how the flour is sifted afterwards, vary from mill to mill.
What it tends to look and feel like
Stone-ground atta usually looks a little more rustic: a slightly coarser, lightly speckled flour with a warm light-brown colour that comes from the bran being ground in. Many cooks associate that texture with home-style rotis.
How roller milling works
The process
A roller mill passes the grain through a series of paired rollers and sieves. The early stages break the grain open and separate the bran and germ from the endosperm, and later stages reduce the endosperm to flour. Because the parts of the grain are separated along the way, a roller mill can produce refined flour such as maida and semolina, and in some mills whole wheat atta made by bringing the separated parts back together.
What it tends to look and feel like
Roller-milled flour is typically finer and more uniform in particle size. Bakeries and large kitchens often value that uniformity because it makes results easier to predict.
Chakki atta and roller-milled atta side by side
| Chakki (stone-ground) atta | Roller-milled atta | |
|---|---|---|
| Grinding action | Grain ground between stones, all parts together | Grain broken and reduced by rollers and sieves in stages |
| Typical texture | Slightly coarser and more rustic | Finer and more uniform |
| Typical colour | Light brown, often lightly speckled | Varies with how much bran is included |
| Dough | Many cooks find it soft and easy to work for home-style rotis | Behaviour varies by mill and grade |
| Where you meet it | Home kitchens, food service and traditional-style brands | Packaged atta from many brands, and bakery supply |
Which one is better?
Neither is automatically better. They are different products that suit different preferences. What matters more than the milling method is whether the pack is genuinely whole wheat, how consistent the flour is from one batch to the next, and how it is packed and labelled. The word "atta" on its own does not tell you how much of the grain is in the flour, so the ingredient list and product name are worth reading.
What to check on an atta pack
- Whether it says 100% whole wheat
- The milling method, if the brand states it
- Batch and packing details, and the best-before date
- The licence number printed on the label
- The nutrition information, if you are comparing brands
Where Mamta Bhoj fits
At our unit in Kanpur, Uttar Pradesh, our atta follows the chakki route: wheat is sourced and checked, cleaned, naturally stone-ground and then packed. Mamta Bhoj Fresh Chakki Atta is 100% whole wheat and is made for everyday rotis, chapatis and parathas. Tandoori Atta uses the same stone-ground approach with a coarser grind for tandoor-style breads.
Our guide to how wheat flour is made covers the whole journey from grain to pack, and the Quality & Process page shows each stage at our unit. If you are comparing atta for a restaurant, canteen or retail shelf, you can read about supply for kitchens and bakeries or wholesale supply for dealers and retailers, or send us your requirement. As the flour manufacturer behind the Mamta Bhoj range, we are happy to explain how a particular product is milled.
General information about how these products are commonly made and used. Methods, grades and recipes vary between mills and kitchens.
