The flour can be manufactured from almost anything that can be dried and pulverized, so in Europe and America, flour is most normally manufactured from wheat, rye and corn, whereas in India it is often made from gram and in Thailand it can be made from rice but there are numerous other types of flour as well, besides all the possible mixtures obtained by mixing the different flours.
Harina ay maaaring manufactured mula sa halos anumang bagay na maaaring tuyo at ligis, kaya sa Europa at Amerika, harina ay pinaka-karaniwan manufactured mula sa trigo, rye at mais, samantalang sa Indya ito ay madalas na ginawa mula sa gramo at sa Taylandiya maaari itong ginawa mula sa bigas ngunit may mga pati na rin ng maraming iba pang mga uri ng harina, bukod sa lahat ng posibleng mga mixtures na nakuha sa pamamagitan ng paghahalo ng iba't ibang mga flours.