8 Simple Home Tricks To Identify Original Groundnut Oil | Adulteration Of Groundnut/Peanut Oil

8 Simple Home Tricks To Identify Original Groundnut Oil  Adulteration Of GroundnutPeanut Oil

Groundnut oil, also known as peanut oil, is a popular cooking oil worldwide due to its mild flavor and high smoke point. However, the rising concerns about food adulteration have made it crucial to ensure the authenticity of the oil we consume. Adulteration of groundnut oil is not uncommon, with unscrupulous vendors mixing it with cheaper oils or harmful substances to cut costs. To safeguard your health and culinary experience, here are eight simple home tricks to identify original groundnut oil and detect any potential adulteration.

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1. Smell Test

The aroma of original groundnut oil and black mustard oil is distinctive, with a nutty fragrance that is slightly sweet. To perform the smell test, pour a small amount of oil into a clean container and sniff it. If the oil has a strong, pleasant aroma reminiscent of fresh peanuts, it is likely to be authentic. However, if the smell is off-putting or lacking the characteristic nuttiness, it may indicate adulteration.

2. Color Check

Original groundnut oil typically has a pale yellow color, similar to straw. It may appear slightly darker if cold-pressed or unrefined. However, if the oil has an unusually dark hue or looks cloudy, it could be a sign of adulteration. Additionally, observe the consistency of the oil; genuine groundnut oil is fluid and free-flowing, whereas adulterated oil may be thicker or viscous.

3. Cold Test

Place a small sample of groundnut oil in the refrigerator for a few hours. Authentic groundnut oil solidifies at colder temperatures due to its high content of monounsaturated fats. Upon refrigeration, genuine groundnut oil will congeal and become semi-solid, indicating its purity. If the oil remains liquid or exhibits inconsistent solidification, it may contain adulterants.

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4. Heat Test

Heat stability is a characteristic feature of original groundnut oil. Heat a small quantity of the oil in a pan over medium heat. Genuine groundnut oil has a high smoke point, meaning it can withstand high temperatures without burning or producing smoke. If the oil starts smoking excessively or emits a foul odor when heated, it could be adulterated with inferior oils or impurities.

5. Sedimentation Test

Allow a sample of groundnut oil to settle in a transparent container for a few hours. Authentic groundnut oil may exhibit slight sedimentation at the bottom, indicating the presence of natural compounds or residues. However, if you notice significant sedimentation or layers forming in the oil, it might suggest adulteration with substances like water or solid fats.

6. Foam Test

When shaken vigorously, original groundnut oil produces minimal foam or froth due to its low viscosity and composition. Pour a small amount of oil into a glass and shake it vigorously for a few seconds. Genuine groundnut oil will generate only a thin layer of foam, which dissipates quickly. Excessive foaming or persistent bubbles may indicate adulteration with other oils or additives.

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7. Iodine Value Test

Although this test requires more specialized equipment, it can provide valuable insights into the purity of groundnut oil. The iodine value measures the degree of unsaturation in the oil, with higher values indicating greater susceptibility to oxidation. Original groundnut oil and organic sesame oil have a relatively low iodine value compared to oils like sesame or mustard oil. Consult a professional or use a testing kit to determine the iodine value of the oil for enhanced authenticity verification.

8. Label Examination

Always scrutinize the label of the groundnut oil container for relevant information such as manufacturing date, expiry date, nutritional content, and certifications. Look for labels indicating organic certification or quality standards compliance, as these are indicators of a genuine product. Avoid purchasing groundnut oil from dubious sources or unfamiliar brands, and opt for reputable suppliers known for their commitment to quality.

9. Source Verification

Where the groundnut oil comes from can also provide valuable clues about its authenticity. Check the origin of the oil and opt for brands that source their groundnuts from reputable farmers or regions known for producing high-quality peanuts. Organic certification or fair trade labels can further validate the integrity of the sourcing process, ensuring that the oil is free from harmful chemicals and ethically produced.

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10. Packaging Quality

Inspect the packaging of the groundnut oil and coconut oil carefully for signs of tampering or poor quality. Authentic products are typically packaged in clean, well-sealed containers that protect the oil from exposure to light, air, and moisture. Avoid purchasing oil that is stored in damaged or unhygienic packaging, as it may compromise the freshness and purity of the product.

11. Price Consideration

While price alone is not always indicative of the quality or authenticity of groundnut oil, unusually low prices should raise red flags. Authentic groundnut oil, especially if it is organic or cold-pressed, may be priced slightly higher due to the quality of the ingredients and production methods involved. Be wary of overly discounted or suspiciously cheap oils, as they may be adulterated or of inferior quality.

12. Reputation and Reviews

Research the reputation of the brand or supplier selling the groundnut oil and look for customer reviews and testimonials online. Reputable brands like Earthy Tales often have a strong online presence and positive feedback from satisfied customers. Engage with online communities or forums dedicated to healthy cooking and organic living to gather insights and recommendations from fellow consumers.

By combining these additional tips with the earlier home tests, you can enhance your ability to identify original groundnut oil and safeguard against adulteration. Remember to prioritize quality, authenticity, and ethical sourcing when selecting groundnut oil for your culinary endeavors.

About Earthy Tales

Earthy Tales is a renowned company dedicated to providing organic and authentic food products to discerning consumers. Their range of offerings includes not only groundnut oil but also other organic cooking oils like sesame oil, coconut oil, and mustard oil. Earthy Tales is committed to sustainability, ethical sourcing practices, and promoting healthy lifestyles through their products. In addition to oils, they offer a diverse selection of organic foods, including Makki Atta, Oat flours, Rice flour, ensuring that customers have access to wholesome and nutritious options for their culinary needs.


Ensuring the authenticity of groundnut oil and yellow mustard oil is essential for maintaining optimal health and culinary satisfaction. By employing these simple home tricks and being vigilant about the quality of the oil you purchase, you can enjoy the benefits of genuine groundnut oil while avoiding the risks associated with adulteration. Choose trusted brands like Earthy Tales for your cooking oil needs, and savor the goodness of pure and organic ingredients in your meals.

Earthy Tales Organics was founded in 2017 by Deepak Sabharwal, an ex-TATA, GE & PEPSI alumni who quit his corporate life of two decades after his mother was diagnosed with carcinoma, to bring about a change in how we grow and consume our food🌱

Earthy Tales is an award-winning, social impact organization which mentor’s organic farmers to grow chemical-free food and home delivers the same in Pan India. They are championing the cause of Sustainability with both farmers and city communities, thereby also building a greener planet. Currently working closely with 500+ organic farmers, Earthy Tales is a global case study for positively impacting the city and farming communities and also a government-incubated agri set-up in the Organic food space.

Health and Wellness Disclaimer

The content on Earthy Tales Community is for informational, education purposes only and is not a substitute for a professional medical advice, diagnosis, or treatment. Always consult your healthcare provider before starting any a new treatment, a therapy or any specific foods to eat or avoid in any particular health condition. Earthy Tales Community will not have any liabilities for any side health effects, should anyone have it from the use of any information on our site.

Earthy Tales | Organic & Healthy Living
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