Yes, milk naturally contains emulsifiers.
Milk's emulsifying properties are primarily due to its components like free polar lipids, whey proteins, and casein. These substances act as natural emulsifiers, helping to stabilize the fat (oil) droplets within the watery (aqueous) environment of milk. This is crucial for maintaining the emulsion and preventing the fat from separating out.
However, it's important to note that while milk contains natural emulsifiers, the quantity might be insufficient for high concentrations of oil. If the oil content is excessively high, the emulsion can become unstable, potentially leading to separation. In such cases, additional emulsifiers might be required for stabilization.