The effect of stabilizing agents on the ES was also observed. The results showed that both CMC and Montanox 60 concentrations had marked effect on the ES of sweetened coconut milk. A significant increase (P < 0.05) in the emulsion stability was observed for the samples containing higher concentration of either CMC or Montanox 60. Phungamngoen et al. (2004) reported that the addition of 0.6% CMC and 0.6% Montanox 60 was applicable for the production of canned high-fat coconut milk (30% fat) and could provide the ES of higher than 80%. However, it was found in this present investigation that the previously suggested concentrations of stabilizing agents could not be applied to the coconut milk samples containing sugar. Furthermore, increasing levels of CMC or Montanox 60 up to 1.0% and fixing either CMC or Montanox 60 to 0.6% could not provide good emulsion stability. The results suggested that at least 0.8% of CMC and 0.8% Montanox 60 were required to produce the high stability of sweetened high-fat coconut milk