What is common between liquids and gases. Gases are similar to liquids in that they flow; hence, both are called fluids. The primary different between gases and liquids is the distance between molecules. In liquids, the molecules are close together, where they c ontinually experience forces from surrounding molecules.
Injera is usually made from the tiny, iron-rich teff. However, teff production is limited to certain middle elevations and regions with adequate rainfall, so it is relatively expensive for the average household.
Teff flour is gluten free, therefore Injera that's made only with teff flour and water is gluten free and has higher demand. There are also different varieties of injera in Ethiopia, such as tekore (black), nech (white), and sergegna (mixed). Batter is poured rapidly in a spiral from the outside inwards.