Microfluidization is an advanced processing technology that has introduced significant and favorable modifications in the food matrix. Microfluidization effectively generates stable and uniform aqueous systems, even when incorporating hydrophobic or nonpolar components, by utilizing a combination of extreme pressure, rapid velocity collisions, cavitation, and elevated shear forces. These forces induce alterations in the structural and conformational properties of materials, leading to changes in their characteristics and enabling potential applications in novel domains. While microfluidization is widely recognized for its effectiveness in reducing particle size, this advanced technique has also proven highly efficient in creating emulsion-based systems. Moreover recently, novel applications have been identified, including nanoparticle production and beverage processing. Although the application of microfluidization in emerging applications is increasing considerable focus, an extreme analysis of these investigations is currently lacking within existing research. This chapter provides a thorough investigation of the operational principles and applications of microfluidizer in the formulation of emulsions utilized within the food industry.