There are quite a few ways in which awamori is unique. The pre-distillation ferment is made in such away that there is plenty of citric acid created, which allows awamori to be made all year round in this hot climat. It is distilled once, and afterwards the alcohol content is lowered with water to about 25 to 30 percent, although some awamori is found at 43 percent alcohol.
There are several theories on the origins of the word awamori itself. "Awa" means foam and "mori" can mean to rise up. One theory then is that the foam would rise in great swaths during per-distillation fermentation. Another is that long ago the level of alcohol was measured by pouring the awamori from a height of an outstretched arm into a small cup, and measuring how much foam rose in the cup. Yet a third, less romantic, states that this name was forced upon the Ryukyu distillers by the Satsuma clan of Kagoshima to be sure that it would not be confused with their beloved shochu.