• Indicator of Oil Degradation: Cooking oils are a collection of triglycerides which consist of three free fatty acids attached to a glycerol molecule. Oil containing high percentages of free fatty acids indicates significant breakdown of these triglycerides. During cooking, especially at high temperatures and in the presence of moisture and oxygen, triglycerides can break down, leading to an increase in FFA content. Monitoring FFA levels helps assess the degree of oil degradation and determine its suitability for further use.
• Health Concerns: Consuming oil with high FFA content can be harmful to health. Oxidized fats and free fatty acids have been associated with adverse health effects, including inflammation and oxidative stress. By monitoring FFA levels during cooking, you can avoid using degraded oil that may pose health risks.
• Impact on Flavor and Aroma: Oils with high FFA content often develop unpleasant flavors and odors, which can negatively affect the taste and aroma of cooked dishes. Checking FFA levels allows you to maintain the desired flavor profile of your food by avoiding the use of rancid or degraded oil.

• Cooking Performance: Good condition oil will always be clear and have a yellow straw like appearance. Oil with elevated FFA content will be dark brown in colour, opaque and may exhibit poor cooking performance. It can lead to uneven heating, excessive smoking, and undesirable texture in cooked foods. By monitoring FFA levels, you can ensure that the oil used for cooking maintains its optimal frying properties, resulting in better cooking outcomes.
• Economic Considerations: Discarding oil with high FFA content can help prevent unnecessary waste and save costs. By identifying degraded oil early through FFA testing, you can avoid using it for cooking, thereby reducing the likelihood of food spoilage and the need for frequent oil replacements.

The J-QUANT® Oil Quality Test Strips are available in two percentage ranges, 0-2.5% and 0-6% and are an easy way to semi-quantitatively measure the free fatty acid content of cooking oil. They require no pre-sampling and can be used directly in the cooking oil whilst hot. For more information, visit [website] or contact us.