There is no difference between the two, tsampa powder is barley flour.
"Tsampa" is the phonetic translation of "fried noodles", tsampa is the barley washed, dried, fried and ground into flour, eaten with a small amount of ghee tea, milk residue, sugar and so on stirred evenly, kneaded into a ball with the hand. It is not only easy to eat, nutritious, high calorie, very suitable for hunger and cold, but also easy to carry and storage.
Related information:
Tsampa is more nutritious than winter wheat, but also easy to carry, go out as long as you carry a wooden bowl, waist girdle leather pockets "Tanggu" (tsampa pockets), and then need a little bit of tea on the line, no need to make a fire to cook. Pour tsampa into the "Tanggu", and then add ghee tea, a hand to grab the mouth of the bag, a hand across the bag to grasp the pinch, a moment, fragrant tsampa can be imported.