Food science
Emulsions are delicate blends of immiscible liquids that rely on interfacial films and stabilizers. Heating disrupts these guardians, forcing droplets to coalesce or rebound unevenly, altering texture, mouthfeel, and appearance. This article unpacks why heat triggers separation, how proteins, phospholipids, and polysaccharides act during thermal stress, and practical methods cooks and manufacturers use to restore unity. By understanding mechanisms such as thinning films, creaming, and coalescence, you gain insight into achieving stable, consistent products from soups to dressings and sauces, even under diverse processing conditions. The strategies discussed span formulation choices, temperature control, and post-heat re-emulsification techniques for reliable results.