Proaster 15kg Coffee RoasterSemi Direct Heating Semi Hot Blast The THCR 12 achieves a rich flavor with a roasting system using radiant heat and hot blast. Compared to direct drum roasters, the THCR 12 roaster provides uniform heat distribution in conjunction with hot blast technology, producing great results even for beginners. It ensures a perfectly uniform roasting result even during dark roasting. PROASTER coffee roasters combine traditional conduction roasting using a drum