Stories
Woman Cuts Open Online Lunchbox to Reveal Mystery Black Substance

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News18•13-10-2026, 18:15
Woman Cuts Open Online Lunchbox to Reveal Mystery Black Substance
- •A woman shared an Instagram video cutting open the rim of a cheap, non-branded steel lunchbox purchased online to expose a black substance.
- •She warned viewers against buying inexpensive unbranded lunchboxes from platforms like Meesho, raising health concerns about potential bacteria.
- •Many internet users countered her claims, explaining that the black material is actually standard thermal insulation used in lunchboxes.
- •Other commenters noted that even branded insulated containers can accumulate trapped food particles, moisture, and fungus over time.
Key Questions Answered
The woman found a mysterious black substance inside the plastic rim of an inexpensive, non-branded steel lunchbox she bought through an online shopping platform.
Many internet users explained that the black material was simply thermal insulation used in building lunchboxes and casseroles, rather than a dangerous contaminant.
She urged people to buy branded products for daily food use because she believed the non-branded cheap boxes contained bacteria and could pose health risks.





