Mustard Oil Safety Inspection

Mustard oil is frequently adulterated with Argemone oil, which is highly toxic and can cause fatal conditions like epidemic dropsy. 1. The Nitric Acid Test (Advanced): Take a small sample of oil in a test tube and add a few drops of concentrated nitric acid. Shake gently and heat. If it develops an orange-yellow to reddish color, it confirms the presence of Argemone oil. *Caution: Use professional help for chemical tests.* 2. The Color & Greenish Tint Check: Pure mustard oil is a clear golden-yellow. If you notice a greenish tinge, it is a strong indicator of Argemone oil contamination which contains toxic alkaloids. 3. The Freezing Test: Place a sample of mustard oil in a small container and put it in the refrigerator for 2-3 hours. Pure mustard oil remains liquid. If you see white spots or solid layers forming, it indicates adulteration with palm oil, lard, or other cheap saturated fats. 4. The Rub Test: Take a few drops of oil and rub them between your palms. Pure oil has a strong, pungent, characteristic mustard smell. If the smell is weak or you detect a chemical/mineral oil odor, it is likely adulterated.