How to Choose the Proper Cooking Oil

Understanding Fats...

While cooking oils are pure fat, they are not created equal. All cooking oils are a combination of saturated, polyunsaturated and monounsaturated fats. It is the concentration of hydrogen that determines how they are categorized. Without getting too technical, the following information will hopefully provide a basic understanding of fats.

Cold Pressed Coconut Oil

Saturated Fats:

How to Choose the Proper Cooking Oil

Saturated fats are found in animal products and are converted into cholesterol by the liver. Butter, margarine, meats and dairy products are especially high in saturated fat. Saturated fat will elevate blood cholesterol levels and is associated with increased rates of heart disease and stroke. It is solid at room temperature.

Unsaturated Fats:

There are two types of unsaturated fats: monounsaturated and polyunsaturated. Monounsaturated and polyunsaturated fats do not raise blood cholesterol levels. Canola and olive oils contain the highest proportion of monounsaturated fat when compared with other cooking oils. Safflower and corn oil are the highest in polyunsaturated fats.

Trans Fats:

Trans fats are man-made or processed fats, which are made from a liquid oil. When hydrogen is added to liquid vegetable oil and pressure is added, the result is a stiffer fat, like the fat found in a can of Crisco. Trans fats are also called hydrogenated fats and are found in margarine and trans fat partially hydrogenated vegetable oils. Trans fats pose a greater risk of heart disease than saturated fats (which were once believed to be the worst kind of fats). While it is true that saturated fats (found in butter, cheese, beef, coconut and palm oil) raise total cholesterol levels, trans fats not only raise total cholesterol levels, they also deplete good cholesterol (HDL), which helps protect against heart disease.

Partially Hydrogenated Fats:

If you have health concerns, read food labels to see if they list "partially hydrogenated oil" as an ingredient. Partially hydrogenated oils are present in all commercially made donuts, crackers, cookies, pastries, deep-fat fried foods (including those from all major fast-food chains), potato and corn chips, imitation cheeses, and confectionery fats found in frosting and candies. All of these products contain unsaturated fats which can be damaged at high temperatures and converted to a trans fat.

Understanding the Difference between Refined and Unrefined Cooking Oils...

Refined Oils:

Refined oils are extracted by solvent extraction for further refining in order to produce clear oil that is free from rancidity and foreign matter. These oils are used as medium cooking oils (225°F to 350°F), high cooking oils (350°F to 450°F) and deep frying oils (greater than 450°F). Refined oils are bland and pale. They have negligible flavor and aroma which makes them ideal for preparing delicately flavored dishes. Use for baking, sauteing, stir-fry and wok cooking, baking, searing, browning, deep-frying and pan-frying.

Unrefined Oils:

Unrefined oils are processed by cold-pressed and expeller-pressed methods. They carry the true flavor of the plant from which the oil is made. The strong flavor of unrefined oils may overwhelm the dish or baked good that is prepared with them; however, strong flavor is not always undesirable and some unrefined oils are used as flavoring agents. (Generally, when there is a strong natural flavor and aroma, there is a higher amount of nutritional value.) These oils are typically called salad oils and are used for salad dressings, marinades, sauces and as light cooking oils for light sautes and low heat baking. As a general rule, they should not be cooked at high temperatures. (The one exception is unrefined safflower oil which is capable of reaching a temperature necessary for deep-frying.) Unrefined oils should not be used at temperatures above 320°F.

Various Cooking Oils and Recommended Use...

Some oils have low smoke points, which means that they will burn at low temperatures. These oils, typically called salad oils, are best used for salad dressings, marinades, sauces and as light cooking oils for light sautes and low heat baking. Other cooking oils have a high smoke point, which means that they can reach higher temperatures without smoking. These particular oils are ideal for deep-frying, pan-frying and sauteing. The information below will discuss various types of cooking oils and their recommended use.

Note: The American Heart Association Cookbook, Fifth Edition, recommends all of the above cooking oils with the exception of peanut oil due to its high saturated fat content.

Miscellaneous Facts, Tips and Warnings...

Rule of thumb when using this method - If the bread cube browns uniformly in:

60 seconds, the temperature is 350-365°F

40 seconds, the temperature is about 365-382°F

Copyright ©2005 Janice Faulk Duplantis

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