It is necessary to shake an oil and vinegar salad dressing before adding it to a salad because they separate easily.
Vinegar and oil will separate. Shaking it mixes them together.
Oil and vinegar dressing is a temporary emulsion. When the dressing sits for a while the oil and vinegar separate from each other. If you were to put this on the salad it would taste pretty disgusting because it would be entirely oil. So to avoid this, you shake the dressing and then add it to the salad so that the oil and vinegar is combined and it creates a good flavour.
Salad dressing.
The word that can go before "dressing" is "salad." In this context, "salad dressing" refers to a flavored sauce or seasoning used to enhance the taste of a salad. It is a common condiment made from a combination of ingredients such as oil, vinegar, herbs, and spices.
This type of dressing is called a vinaigrette.
One should shake an oil/vinegar dressing to temporarily blend the ingredients. If you poured before shaking, you might end up with nothing but oil on salad.
Salad dressing is in the fat category...
Suspension
eating a dry salad / vinegar
no
No. Salad dressing is a heterogeneous mixture of oil, vinegar, and various other ingredients.
Yes there is