Cooking oil is purified fat

Fat

Fats consist of a wide group of compounds that are generally soluble in organic solvents and generally insoluble in water. Chemically, fats are triglycerides, triesters of glycerol and any of several fatty acids. Fats may be either solid or liquid at room temperature, depending on their structure...

 of plant

Plant

Plants are living organisms belonging to the kingdom Plantae. Precise definitions of the kingdom vary, but as the term is used here, plants include familiar organisms such as trees, flowers, herbs, bushes, grasses, vines, ferns, mosses, and green algae. The group is also called green plants or...

 origin, which is usually liquid at room temperature (saturated oils such as coconut and palm are more solid at room temperature than other oils).

Some of the many different kinds of edible vegetable oil

Vegetable fats and oils

Vegetable fats and oils are lipid materials derived from plants. Physically, oils are liquid at room temperature, and fats are solid. Chemically, both fats and oils are composed of triglycerides, as contrasted with waxes which lack glycerin in their structure...

s include: olive oil

Olive oil

Olive oil is an oil obtained from the olive , a traditional tree crop of the Mediterranean Basin. It is commonly used in cooking, cosmetics, pharmaceuticals, and soaps and as a fuel for traditional oil lamps...

, palm oil

Palm oil

Palm oil, coconut oil and palm kernel oil are edible plant oils derived from the fruits of palm trees. Palm oil is extracted from the pulp of the fruit of the oil palm Elaeis guineensis; palm kernel oil is derived from the kernel of the oil palm and coconut oil is derived from the kernel of the...

, soybean oil

Soybean oil

Soybean oil is a vegetable oil extracted from the seeds of the soybean . It is one of the most widely consumed cooking oils. As a drying oil, processed soybean oil is also used as a base for printing inks and oil paints...

, canola oil, pumpkin seed oil

Pumpkin seed oil

Pumpkin seed oil , a culinary specialty of south eastern Austria , eastern Slovenia , north western Croatia Pumpkin seed oil (Kernöl or Kürbiskernöl in German, bučno olje in Slovenian, bučino ulje or bundevino ulje in Croatian, and tökmag-olaj in Hungarian), a culinary specialty of south eastern...

, corn oil

Corn oil

Corn oil is oil extracted from the germ of corn . Its main use is in cooking, where its high smoke point makes refined corn oil a valuable frying oil. It is also a key ingredient in some margarines. Corn oil is generally less expensive than most other types of vegetable oils. One bushel of corn...

, sunflower oil

Sunflower oil

Sunflower oil is the non-volatile oil expressed from sunflower seeds. Sunflower oil is commonly used in food as a frying oil, and in cosmetic formulations as an emollient. Sunflower oil was first industrially produced in 1835 in the Russian Empire.- Composition :Sunflower oil is mainly a...

, safflower oil, peanut oil

Peanut oil

Peanut oil is an organic material oil derived from peanuts, noted to have the aroma and taste of its parent legume....

, grape seed oil

Grape seed oil

Not to be confused with Rapeseed oil.Grape seed oil is a vegetable oil pressed from the seeds of various varieties of Vitis vinifera grapes, an abundant by-product of winemaking.- Cooking :...

, sesame oil

Sesame oil

Sesame oil is an edible vegetable oil derived from sesame seeds. Besides being used as a cooking oil in South India, it is often used as a flavor enhancer in Chinese, Japanese, Korean, and to a lesser extent Southeast Asian cuisine.The oil from the nutrient rich seed is popular in alternative...

, argan oil

Argan oil

Argan oil is an oil produced from the kernels of the argan tree, endemic to Morocco, that is valued for its nutritive, cosmetic and numerous medicinal properties. The tree, a relict species from the Tertiary age, is extremely well adapted to drought and other environmentally difficult conditions of...

 and rice bran oil

Rice bran oil

Rice bran oil is the oil extracted from the germ and inner husk of rice. It is notable for its very high smoke point of and its mild flavor, making it suitable for high-temperature cooking methods such as stir frying and deep frying...

. Many other kinds of vegetable oils are also used for cooking.

The generic term "vegetable oil" when used to label a cooking oil product may refer to a specific oil (such as rapeseed

Rapeseed

Rapeseed , also known as rape, oilseed rape, rapa, rappi, rapaseed is a bright yellow flowering member of the family Brassicaceae...

 oil) or may refer to a blend of a variety of oils often based on palm, corn, soybean or sunflower oils.

Oil can be flavored by immersing aromatic food stuffs such as fresh herbs, peppers, garlic and so forth in the oil for a period of time.