Heat transfer always occurs from a region of high temperature to another region of lower temperature. Heat transfer changes the internal energy of both systems involved according to the First Law of Thermodynamics.
Cyperus esculentus (also called chufa sedge, nut grass, yellow nutsedge, tiger nut sedge, or earth almond) is a crop of the sedge family widespread across much of the world.It is native to most of the Western Hemisphere as well as southern Europe, Africa, Madagascar, the Middle East and the Indian Subcontinent.n Spain, C. esculentus is cultivated for its edible tubers, called earth almonds or tiger nuts, for the preparation of  horchata de chufa, a sweet, milk-like beverage. However, in most other countries, C. esculentus is considered a weed.
To get sun dried tiger nuts, youâll have to first grow the fresh tiger nuts as described in the blog post above. Then youâll have to sun dry them. We dry our chufa indoors because we have a lot of precipitation. But if youâre in a dryer climate, Iâm sure you can grow them outside.o itâs understandable that our apprentices thought it was a hoot when we spent part of an afternoon on hands and knees riffling through the soil for bean-sized chufa tubers. Still, I love these nuts and make a point of growing them for our seed catalogue and especially to snack on.