Mayonnaise is made by combining lemon juice or vinegar with egg yolks. Eggs (containing the emulsifier lecithin) bind the ingredients together and prevent separation. Then, oil is added drop by drop as the mixture is rapidly whisked.

What is mayonnaise made out of?

What Is Mayo? Mayonnaise is made by emulsifying eggs, oil, and some type of acid, usually vinegar or lemon juice. Emulsification means combining two or more liquids that normally are unmixable. ... The lecithin in egg yolk is an effective emulsifier that keeps it together.

How mayonnaise is manufactured?

Modern mayonnaise can be made by hand with a whisk, a fork, or with the aid of an electric mixer or blender. It is made by slowly adding oil to an egg yolk, while whisking vigorously to disperse the oil. ... If vinegar is added directly to the yolk, it can emulsify more oil, thus making more mayonnaise.