Petroleum jelly plastics and minimize ventilation issues, isopropyl (rubbing) alcohol can be used to remove petroleum jelly from most surfaces. Isopropyl alcohol is inert to most household surfaces, including almost every plastic, and removes petroleum jelly efficiently. While alcohol causes fewer ventilation problems than petroleum solvents, ventilation is still recommended, especially if large surface areas are involved. Petroleum jelly is also soluble in lower-molecular-weight oils. Using an oil to dissolve the petroleum jelly first can render it more soluble to solvents and soaps that would not dissolve pure petroleum jelly. Vegetable oils such as canola and olive oil are commonly used to
Jelly doughnut in the "Hartford Courant Of Connecticut" reported that "Jelly Doughnut Diets Harmful to War Effort." A 1976 "Los Angeles Times" story explains how to make jelly doughnuts from scratch for a "tasty after-school" snack for youngsters. In a 1997 taste test, Ruth Reichl graded jelly doughnuts from a local doughnut shop higher than ones from national chain doughnut shops. Jelly or custard filled doughnuts are known as sufganiyot in Hebrew and are a popular Hanukkah treat. They are cooked in oil which is in keeping with the theme of the holiday, celebrating one day's worth of oil "keeping a sacred