Production of Arenga Palm Sugar Granules by Wet and Dry Granulation
Fresh palm sap in bamboo tube was poured, then was measured for its alkalinity and its solid content. It was then
heated and evaporated in a open pan evaporator using firewood. Palm sap of 65 litres was heated around 97 oC up to
120 + 2 oC for about 3.5 hours. It was stirred occasionally during heating. The heating process then stopped and the thick
palm sap was taken off the heating, after that it cooled for about 10 minutes while stirred, sheared and pressed up.
When palm sugar was about to start forming granules, the stirring speed was accelerated. Arenga palm sugar granules from
fresh palm sap was used as arenga palm sugar granules control (GAG-control). The producing of arenga palm sugar
granules by dry granulation method was started with the preparation of the raw material of palm sugar block (GAC) from
palm sap. The GAC process was same with the palm sugar granules by wet method but the heating was done up to
118 + 2 oC. Furthermore, the hot thick juice was poured on a wooden mold. It was settled in around 10 minutes until it
become solid. After that, palm sugar block was removed from the molds and wrapped with sallaca leaves.