Emulsification, or to emulsify something, is defined as the mixing of two liquids that usually are unmixable together to form an emulsion. Two liquids can form different types of emulsions depending on which liquid was dispersed in which, with one liquid being the dispersed phase and the other being the external phase, which is added into the dispersed phase. Our ability to emulsify also plays a vital role in the human digestion process and occurs in the small intestine to aid the breakdown of fats.