It can be possible to observe in Fig. 2 that for the first cycle the maximum Aw is obtained in the range of 200e300 W and baking time from 120 to 180 s while for the second cycle several independent variables combinations could produce a product with maximum Aw. Power from 700 W and higher with baking time ranged from 43 to 53 s, and power from 925 to 1000 W and baking time from 33 to 83 s produces pound cakes with high Aw. According with Fig. 2, power in microwave baking process in cycle one presented a higher influence in moisture loss.