Rinse the rosemary and shake or blot it dry, or use a salad spinner to remove excess moisture. Run the dehydrator at a low heat setting (between 95 and 105 degrees Fahrenheit, or 35 and 40.5 degrees Celsius) until the rosemary stems break when bent.   Herbs that are more delicate crumble when dry, but rosemary leaves are more likely to break, much like the stems. The exact amount of time it takes to dry rosemary using this method will vary, but on average, it takes about 6 to 8 hours at 95 degrees Fahrenheit (35 degrees Celsius). Transfer the dried rosemary to a clean, glass jar and seal tightly. Store in a dry, dark cupboard.

TL;DR in Indonesian:
Siapkan rosemary. Sebarkan rosemary di atas loyang atau nampan alat pengering. Simpan di botol jar kaca bersih.