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
Coffee jelly cubes of chilled coffee jelly in a bowl. Coffee jelly Recipes for coffee jelly appear in cookbooks published in England as early as 1817. The earliest recipes call for coffee to be mixed with calves' foot jelly and sometimes call for isinglass or other clarifiers. After the introduction of packaged gelatin, most recipes call for the gelatin to be dissolved in the hot coffee and then molded. In the early 20th century coffee jelly was promoted as a healthier alternative to hot coffee, as it was thought the gelatin would absorb excess acid in the stomach. Jell-O launched a short