Tamil Nadu’s Edible Oil Problem: FSSAI Edible Oil Survey 2020

You buy “groundnut oil” or “sesame oil” expecting purity and safety. But large-scale testing shows real issues in the edible oil market—especially in Tamil Nadu—around adulteration, toxins, and stale oil quality.

What’s the Problem?

• 1) Adulteration / Oil is not what it claims

  Description text goes One of the biggest red flags found in testing is fatty acid profile mismatch—a scientific way of saying:
  ✅ label says “one oil”
  ❌ composition suggests it may be mixed with other cheaper oils.

  -        4.9% of all India failed, with Tamil Nadu accounting for 25.3% of this.

  Tamil Nadu is ranked first in the category of adulteration failures and is identified as a significant contributor to these failures here.

• 2) Aflatoxin risk (especially in Groundnut oil)

  Aflatoxins are harmful contaminants that can come from poorly stored seeds (like groundnuts).
  Testing flagged aflatoxin presence, with Tamil Nadu noted strongly—especially for groundnut oil.

  -        0.65% of all India failed, with Tamil Nadu accounting for 62.1% of this.

  -        Tamil Nadu is ranked first in the category

• 3) Stale / Poor shelf-life oils

  Even if oil is “pure,” it can still be old or badly stored.

  Common signs in lab testing:

  • High acid value

  • Rancidity markers

  • Excess moisture

  Tamil Nadu had a high share of failures in these shelf-life indicators.

  -        Shelf-life indicators: 2.77% of all India failed, with Tamil Nadu accounting for 28.5% of this.

  -        FATTY ACID PROFILE: 17.3% of all India failed, with Tamil Nadu accounting for 18.8% of this.

  -        IODINE VALUE-STATE: 5.42 % of all India failed, with Tamil Nadu accounting for 24.5% of this.

  -        SAPONIFICATION VALUE: 4.63 % of all India failed, with Tamil Nadu accounting for 13.6% of this.

  -        ALLYLISOTHIOCYANATE: 1.74 % of all India failed, with Tamil Nadu accounting for 42.11% of this.

  -        Tamil Nadu is ranked first in the above category

Why This Matters to You

Low-quality or adulterated oil can lead to:

• Health risks (oxidation, contaminants)

• Wasted money (paying premium for “fake purity”)

• Poor cooking performance (smell, taste changes)

Final Takeaway

In Tamil Nadu, the edible oil issue isn’t just one problem—it’s three:

1. Adulteration/purity mismatch

2. Aflatoxin risk (notably in groundnut oil)

3. Stale oil quality due to poor storage/shelf-life control

Tamil Nadu Stats: Only 47.4% of Tamil Nadu’s overall oil samples passed all standards, while 52.6% of the samples failed.

Source : FSSAI Edible Oil Survey 2020 released in 2022.