Italian ice is a semi-frozen sweetened treat composed of finely granulated ice and fruit concentrates, juices, or purées, or other natural or artificial food flavorings. Italian ice is derived from Italian granita and is in many ways similar to sorbet and snow cones, but differs from American-style sherbet in that it does not contain dairy or egg ingredients. The ingredients in Italian ice are mixed, then whipped during the freezing process similar to the process for making ice cream. As a group, Italian ice comes in a variety of consistencies from crunchy, to smooth, to slushy. In Philadelphia and its metropolitan area, Italian ice is known as water ice. In Boston and other places in New England, it is known as slush — not to be confused with a slushie, which is a drink.