Every element, on the record.
We sent our cookware to an independent laboratory and we're publishing the full report — every measured element, exactly as reported. No rounding in our favour, no claims the numbers don't back.
- Report №
- 137556
- Issued
- 10 June 2026
- Laboratory
- Star Wire (India) Laboratories Pvt. Ltd.
- Samples
- Casserole & baking tray
The samples
Two pieces from our range, off to the lab
We submitted a casserole and a baking tray — the same cast iron that goes into the rest of the range — for chemical analysis and coating measurement.
Chemical composition
What's actually in the iron
Eighteen elements were measured by spectro analysis (ASTM A751, Cl. 9.2.2, Table-2). The honest headline: it's overwhelmingly iron, shaped by carbon and silicon — exactly what cast iron is supposed to be.
Drawn to scale. Iron calculated as the balance of the 18 measured elements.
Carbon
The element that makes cast iron cast iron. Carbon gives the metal its dense, heat-retaining structure — the reason your pot stays hot long after the flame is off.
Silicon
Carbon's standard partner in cast iron. Silicon helps the molten iron flow and cast cleanly into shape.
Manganese
Present in a small, deliberate amount that contributes to the strength and durability of the casting.
Trace elements
The remaining fraction of a percent — naturally occurring trace elements, as found in any cast iron.
Method: ASTM A751 Cl. 9.2.2 Table-2 · Sample 26F0250-1 · Tested 09-06-2026 at 25±5 °C, RH 45±20% · Values refer to the tested samples.
Surface coating
The coating, measured
Using a digital coating thickness meter, the lab measured an average coating thickness of 331 microns on the black-coated surface — roughly a third of a millimetre of finish fused onto the iron beneath.
That thickness is what stands between the raw casting and your food: it's why the surface cleans easily and why the iron underneath stays protected.
Measured on the black-coated side of the specimen · Report №137556, page 2.
The document
Read the report yourself
The full two-page test report from Star Wire (India) Laboratories, reproduced unmodified — header, stamps, remarks and all.
Test Report №137556 · Issued 10-06-2026 · Star Wire (India) Laboratories Pvt. Ltd., Ballabgarh, Haryana · Results relate to the samples tested.
