Instructions for Confirming the Purity of Mustard Oil (Sarso Tel)
- Check the Label
- Look for FSSAI (Food Safety and Standards Authority of India) or other regulatory approvals.
- Ensure it states 100% pure mustard oil without adulterants.
- Explore the Color and Texture
- Pure mustard oil has a dark yellow or amber shade.
- It should have a thick texture, not light.
- Smell Test
- Original mustard oil has a strong, fragrant aroma.
- Lack of this aroma may indicate adulteration.
- Taste Test
- Pure mustard oil has a sharp, slightly bitter taste.
- If it lacks pungency or tastes overly bland, it may not be pure.
- Refrigeration Test
- Place a small amount of mustard oil in a refrigerator for a few hours.
- Pure mustard oil solidifies partially, contaminated oil may not.
- Rub Test
- Rub a drop between your palms. It should feel warm due to the natural pungency.
- If it feels too smooth or greasy, it may be mixed with other oils.
- Water Test
- Add a few drops of mustard oil to a glass of water.
- Pure oil will float and not mix with water; adulterated oil may form layers or dissolve partially.
- Chemical Test (For Adulterants like Argemone Oil)
- Mix a few drops of mustard oil with concentrated nitric acid.
- If it turns reddish-brown, it indicates the presence of toxic argemone oil.
- Check for Staining
- Apply a drop to a white cloth.
- Pure mustard oil should leave a natural yellow stain; synthetic colors may leave unnatural hues.
- Buy from Trusted Sources
- Purchase from reputable brands or local mills with a good track record.
- Avoid loose oil sold in unsealed containers.
Simple Methods to Test the Purity of Mustard Oil at Home
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Mustard Oil Purity Test: How to Verify Genuine Quality