The primary objective of this study was to evaluate the effectiveness of tray water temperature (10, 25, and 50 °C) on the RF heating rate of beef homogenate with different lean-to-fat compositions. A time-temperature profile for RF heating of the beef homogenate blends at specific initial water temperatures is shown in Fig. 2 and Fig. 3. The time required to reach the target temperature of 60 °C for each blend type consistently decreased as water temperature increased from 10 °C to 50 °C. Beef homogenate 90/10 reached the target temperature fastest among the other blends (10.12 min at 10 °C water temperature, 7.03 min at 25 °C, and 4.08 min at 50 °C). Among homogenate blends, 73/27 composition took the longest (18.87 min at 10 °C water temperature, 17.26 min at 25 °C, and 13.86 min at 50 °C) to reach 60 °C. For all the initial water temperatures used, a clear trend of increased come up times was observed as the percentage of fat increased