Heater unit with Direct steam injection (DSI) and flash cooling. previously used on milk concentrate 50%. Extreme fast heating and cooling of sensitive products. The Unit exist of: infeed (centrifugal pump Fristam 7,5kw, Tubular pre heater/air cooler (recuperation system), tubular heater by steam/hotwater indirect to ± 80°C, Steam injection direct in the product (heating up to between 90°C or max 145°C) and flash vat to cool product down by vacuum), oufeed pump (Fristam 7,5kW with flushed seal and double filter. The steam is filtered before injected by a steam filter (make Pal). with water pump, product and steam valves and piping. (excluding liquid ring vacuumpump and controls) can be offered on request.