Ghee

Ghee is made by simmering unsalted butter in a large pot until all water has boiled off and protein has settled to the bottom. The cooked and clarified butter is then spooned off to avoid disturbing the milk solids on the bottom of the pan. Unlike butter, ghee can be stored for extended periods without refrigeration, provided it is kept in an airtight container to prevent oxidation and remains moisture-free. Texture, colour, or taste of ghee depends on the source of the milk from which the butter was made. In India, ghee is usually made with water buffalo's milk as it tends to be whiter than cow's milk.

Ghee was frequently used for libations in Vedic rituals, and there is even a hymn to ghee. Ghee is also burnt in the Hindu religious ritual of Aarti and is the principal fuel used for the Hindu votive lamp known as the diya or deep. It is used in marriages and funerals, and for bathing murtis during worship. In other religious observances, such as the prayers to Shiva on Maha Shivaratri, ghee is sacrificed along with four other sacred substances: sugar, milk, Dahi or yogurt, and honey which is called the Panchamrut. According to the Mahabharata, ghee is the very root of sacrifice by Bhishma. Also, it is used generously in Homam/Yagnam as it is considered as food for Devas (God).

Indian restaurants and some households may use hydrogenated vegetable oil (also known as vanaspati, Dalda, or "vegetable ghee") in place of ghee for economic reasons. This "vegetable ghee" is actually polyunsaturated or monounsaturated partially hydrogenated vegetable oil, a trans fat. Trans fats are increasingly linked to serious chronic health conditions. Not only is "vegetable ghee" implicated in causing high LDL, it also lacks the health-promoting benefits claimed for "Shuddh" (Hindi for Pure) ghee. The term Shuddh Ghee, however, is not officially enforced in many regions, so partially hydrogenated oils are marketed as Pure Ghee in some areas. Where this is illegal in India, law-enforcement often cracks down on the sale of fake ghee. Ghee is also sometimes called desi (country-made) ghee or asli (genuine) ghee to distinguish it from "vegetable ghee".

When cooking, it can be unhealthy to heat polyunsaturated oils such as vegetable oils to high temperatures. Doing so creates peroxides and other free radicals. These substances lead to a variety of health problems and diseases. On the other hand, ghee has a very high smoke point and doesn't burn or smoke easily during cooking. Because ghee has the more stable saturated bonds (i.e., it lacks double bonds which are easily damaged by heat) it is not as likely to form dangerous free radicals or advanced glycation endproducts when cooking. Ghee's short chain fatty acids are also metabolized very readily by the body, which would seem to negate concerns of its health effects. However, there is significant controversy between traditional oils and modern industrially processed oils which tends to heavily cloud the facts and issues surrounding oil consumption.