Traditional process
Judima is prepared in broadly a two-step process—the preparation of the starter cake and the use of the starter cake to ferment cooked rice.
The starter cake for Judima is called Humao. It is prepared from the dried powdered thembra bark, made into a dough with rice powder and water and then air-dried.
For fermentation glutinous bora rice is used, and among its may varieties the one called bairing is preferred. The rice is boiled/steamed, and then spread to cool over banana leaves. The starter cake is crushed and mixed with the cooled rice, and then set aside in earthen vessels for three to five days (longer in the winters). At the end of this period, the liquid that is produced is strained—which is Judima.[3]
Judima that is distilled is called Juharo.