Abstract: An evaporator 1 comprises a flat tube 2 bent zigzag, and a corrugated fin 3 disposed between each adjacent pair of straight tube portions 2a of the flat tube 2 and brazed thereto by the flux brazing method. The flux remains on the surface of the portion of the corrugated fin 3 not brazed to the straight tube portions 2a in an amount of 0.03 to 1 g/m2. @ The evaporator 1 is fabricated by a process including applying the flux in an amount of 0.05 to 2.8 g/m2 to the outer surface of a zigzag flat tube 2, disposing a corrugated fin 3 between each adjacent pair of straight tube portions 2a of the flat tube 2 and brazing the fin 3 to the flat tube 2. The evaporator 1 can be effectively inhibited from emanating odor.