Which do you pour first for dressing oil or vinegar?
you pour oil first then vinegar.
There is usually some kind of fat, such as vegetable or olive oil. Often, an acid, such as vinegar or lemon juice, is included, as are various spices and sometimes sugar. The most basic salad dressing is probably oil and vinegar. Pick an oil, pick a vinegar, pour some on your salad. Jk! It's made of pig SShhiitt!
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.
A dressing of that kind will not easily go bad. If the Olive oil and Vinegar separate, just shake it to reconstitute. Both Olive oil and Vinegar have an unrefrigerated shelf life of years. Although vinegar is in itself a natural preservative (all acids are), if you introduce high protein items like anchovies into the dressing, they will go off more quickly.
Italian dressing separates because it is basically a mixture of oil, vinegar and water with flavorings. Oil does not mix easily with water and vinegar; after a few moments, the oil always rises to the top. This is why you must shake most kinds of dressing before pouring them onto food. ............................................. Italian dressing would separate in two layers because of the difference in densities. The substance on the bottom (water & vinegar) has a…