roselle is a nutrient-rich herbs and biologically active substances, especially antioxidant anthocyanin, the production process is quite simple but high economic efficiency. For more diverse product line and create medicines handy from this. We assessed the quality of raw materials and extraction inherited from the subject of the Master Dang Thi Yen [10]. Calyx bup be crushed dried fruit 0,42mm, process is performed at 40 ° C for 3 hours, the percentage of raw materials: water was 1:10 (g / ml). Since then I study examined temperature and time concentrated roselle extract, maltodextrin blended rate, temperature spray drying, as well as survey content roselle powder, sugar rate, flavor powder mix ratio product form soluble tea product. Achievements concentrated extract at 90oC for 60 minutes and then mixing maltodextrin with an 15% in volume, spray drying at 90oC, 5rpm input flow, pressure 3bar. Soluble tea products formed when mixing flour ROSELLE: sugar mill: strawberry flavor powder ratio of 1: 22: 6 in volume.
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