The surface temperature histories of fish grilled under three heating media (SHS, dry air, and N2) were obtained using a convectiontype oven. The heat flow rate and the temperature setting were adjusted to obtain a similar surface temperature history, as
shown in Fig. 7. The surface temperature profiles using dry air and N2 were compared with the profile using SHS as the heating medium. It was observed that they were very similar, attaining an jREj value of 2.7% with a standard deviation of 5.9% for dry air,and an jREj value of 4.1% with a standard deviation of 1.4% for N2. In the case of the SHS medium, the surface temperature was slightly higher in the early stages of heating compared with those
in the other two media. Similar results for an SHS oven were reported by Ohishi and Shibukawa (2008). Above 130 _C, however, all of the surface temperature histories were similar.