Bio pellet is popular as an alternative solid fuel for replacing firewood and coal. In this study, the biomass used as raw material for making bio pellets is durian peel. Due to the high-water content, durian peel must be dried before being processed into a bio pellet. Therefore, this study aimed to analyze three variable time effects of drying duration at a temperature of 100°C on the water content of durian peel. The results showed that the water content of durian skin after drying for 6, 12, and 24 hours was 11,04%; 8,09%; and 3,75%. The most extended drying duration will produce the driest raw materials and the lowest moisture content. Nevertheless, the drying time that has the appropriate moisture content for the raw material for making pellets was 6 and 12 hours.

Pellets are solid fuels made from biomass. This work was aimed at finding out the effect of drying time on the moisture content in sawdust-made pellets using a moisture analyzer. The pellet was divided into 4 groups and each group was experimented with up to 5 times, namely: non-drying pellet and drying pellet at 100°C for 10, 15 and 20 minutes after the pellet comes out of the pelletizing machine. The results showed that the water content of the pellet was 31% for the non-drying pellet and 22%; 21%; 15% for the drying time of 10, 15, and 20 minutes. The water content was still slightly higher than the specified standard.