Mustard oil is a staple in many Indian kitchens, commonly used in various culinary preparations. While pure mustard oil offers numerous health benefits, adulterated or fake mustard oil can pose serious health risks. In recent times, several companies have been found mixing inferior oils with mustard oil, leading to increased consumer concerns. This article aims to provide you with effective methods to identify fake mustard oil.

Checking Purity Before Use

Before using mustard oil, it's essential to verify its purity. One simple method is to place the oil in a container and refrigerate it. If the oil contains palm oil, it will settle at the bottom, while pure mustard oil will float on top. This is a straightforward way to detect adulteration.

Skin Test for Adulteration

Another method involves applying a small amount of mustard oil to your hands and feet. If you notice any discoloration upon rubbing, it indicates that the oil is adulterated. Pure mustard oil should not leave any color or chemical smell; instead, it has a sharp aroma that can irritate the eyes when heated.

Using the Barometer Test

You can also use the barometer test to check the oil's authenticity. Genuine mustard oil should have a barometer reading between 58 and 60. Readings above this range suggest that the oil is not pure. It's advisable to purchase oil from reputable brands that provide a hallmark certification.

Nitric Acid Test

In addition to the above methods, you can use nitric acid to test the oil. Mixing a few drops of nitric acid with mustard oil will change the color if the oil is pure. In contrast, adulterated oil will show a noticeable color change.

Color and Aroma Indicators

You can also determine the authenticity of mustard oil by heating it in a pan. Pay attention to the smoke and the aroma; if the smoke irritates your eyes, the oil is likely pure. Pure mustard oil has a golden-yellow color and a distinct shine, while fake oil lacks a strong aroma and has a lighter color.