Frying Oil Quality

OleoTest | A rapid and easy test for maintaining frying oil quality.

Caring about your fry oil’s Total Polar Content


OleoTest: test for oil freshnessNowadays, deep-frying food is one of the most widespread culinary and industrial cooking techniques in the world. Fried products are well perceived by customers because of their texture and distinctive flavor.

The technique of deep-fat frying involves a series of complex processes that not only affect the oil composition and the product undergoing the frying process, but also – and more importantly! – the consumer’s health.

Quality control during the manufacturing process are carefully controlled in many countries, where polar compound composition is often limited to 25%. OleoTest provides a concrete measurement that will demonstrate compliance in your food safety plan.


OleoTest is a rapid test suitable for analyzing the total polar compounds in oils used for deep frying. There are many advantages to using OleoTest:

  • Easy to use: No technical skills needed; sophisticated enough for a scientist, easy enough for a home chef.
  • Rapid results: 2 minutes.
  • Simple: No preparation, calibration, external reagents ,or instruments are needed.
  • No maintenance: No equipment to wash or dry, no repair expenses.
  • Easy storage and transport: Tests are pocket-sized and can be stored at room temperature.
  • Record-keeping: The test will hold stable results for months, and can be used as a record of quality control methods.
  • Safe: Non-toxic reagents. No need for high temperatures; oil can be tested at 140°F. No risk of smoke, fire, or explosion.
  • Correlation: OleoTest shows the best correlation to the official IUPAC-AOAC methods of quality control of any method available.
Oleotest is validated to use with seeds oils (sunflower, corn, peanut, etc.) and coconut oil. A different color scale must be used to measure polar compounds in palm oil. Oleotest can not be used with olive oil as its color interferes with the color of the test.

For easy reference, download Emport’s OleoTest fact sheet!

OleoTest; Rapid quality control test for fryer oil

OleoTest is a rapid test suitable for analyzing the total polar compounds in oils used for deep frying. OleoTest provides results in fewer than 5 minutes, and is available in packs of 10 or 50 tests per kit.


Emport Information

How To Test

OleoTest requires no special equipment and is easy to conduct; any employee can use the kit and get results in less than 5 minutes. Learn more about how to use OleoTest!

Emport Documentation

Why Test?

Oil that’s past its prime doesn’t just taste bad, it’s unhealthy. Read more about the life cycle of oil in our White Paper, Monitoring Polar Compounds in Fry Oil. You can download it on our Documentation page.

Have questions? Ask us at Emport!FAQ

Need more answers? We’ve assembled a one-stop page for the most frequently asked questions about Oleotest. You’ll find information about how to use the test and what it measures.