Generally, surfactants like monoglycerides or Tweens tend to reduce the surface tension much further than most of the proteins do. The emulsifier added in the coconut milk samples therefore displaced the proteins which had denatured during the preheating and also were preferentially adsorbed at the oil–water interface of newly created droplets. As the reason described above, much smaller aggregates of fat globules were detected for the samples passing high heating temperature. The presence of small aggregates hence increased the resistance to flow leading to an increase in the viscosity of the sample