In this research, it was aimed to manufacture a torrefaction reactor and determine the optimum torrefaction temperature to obtain biocoal with better quality under faster and controlled conditions compared to traditional production methods (construction wood piles and commercial kiln method). For this purpose, red oak "Quercus Rubra" samples were torrefied at 5 different temperatures (220, 245, 260, 280, 300 °C) using the reactor, proximate analyses of the obtained samples were made and the heat values were measured. According to the results, sample with highest heating value, which was obtained from torrefication system, was the sample having a value of 7135 cal g-1 obtained at 300 ℃ whereas the product obtained at 220 ℃ having the least value of 5421.33 cal g-1. Also, the sixth sample obtained at 300 ℃ was found better in respect of its ash and moisture ratios compare to commercially sold ones. Volatile substance ratios and fixed carbon ratios in the samples were determined between %70-%80 and 20%