In general, glucose reduction occurred in the 1st and 2nd bodies, and this was affected by pH (Figure 5a). As acid degradation of glucose was expected to be small (9), the most likely explanation for glucose reduction was that glucose precipitated out with larger, insoluble molecules. Because pH had a marked effect on glucose reduction, the latter effect was most likely the major effect and this was especially true for the mid (Figure 5b) and late seasons (Figure 5c). Also in the early season, a relatively small amount of sucrose hydrolysis was detected in the last (3rd) evaporator (there was no significant difference in glucose changes in the last evaporator among the three target FES pH values), which was surprising as the lowest temperatures and highest Brix’s occurred here. Because hydrolysis was not detected in this last body in either the mid (Figure 5b) or the late (Figure 5c) seasons, it is most likely that this slight hydrolysis was caused by the higher amounts of glucose and fructose and other impurities catalyzing hydrolysis. However, another explanation may be that in the mid or late seasons, glucose was degraded or precipitated out in more amount than was produced by hydrolysis.