Standard Lauh Bhasma and Lauh Bhasma Shatputi differ in the number of puta calcination cycles, and classical texts specify each grade for distinct formulation contexts.
Lauh Bhasma and Lauh Bhasma Shatputi are both iron-based calcinations prepared through repeated puta cycles, but the number of those cycles distinguishes them in classical texts and in practical formulation choices. Understanding what extra puta cycles achieve helps a buyer specify the correct grade for their product range before approaching a bulk supplier.
Lauh Bhasma is the classical Ayurvedic preparation produced by the incineration of iron through a defined sequence of shodhana (purification) and marana (calcination) stages. The raw iron is first purified through quenching in liquids prescribed in classical texts including the Rasa Tarangini. It is then formed into discs using a binding medium such as aloe vera juice or triphala decoction, dried and subjected to puta cycles in which it is heated in a sealed crucible arrangement at a controlled temperature, cooled, ground with the binding medium and prepared for the next cycle.
The result is a fine, reddish-brown powder characterised by the Ayurvedic Pharmacopoeia of India through tests including particle size, colour, loss on ignition, iron assay and the nishchandratva test. Nishchandratva confirms the absence of metallic lustre when a small quantity is examined under low light conditions. Any preparation retaining metallic shine has not been adequately processed and does not meet the pharmacopoeial standard.
The number of puta cycles is not fixed at a single value for all Lauh Bhasma. Classical texts reference multiple grades, and the two most commonly specified in commercial supply contexts are standard Lauh Bhasma, produced with a lower number of cycles, and Lauh Bhasma Shatputi, which specifies approximately one hundred cycles.
Shatputi translates from Sanskrit as "hundred puta." The designation indicates that the iron has been calcined through approximately one hundred sequential puta cycles, each involving controlled heating, cooling and trituration with the prescribed binding medium before the next cycle begins. The classical rationale is that extended processing produces a finer particle size, improved absorption characteristics and a preparation that meets the classical quality standards more consistently and stringently than a lower-cycle variant.
Two classical quality indicators are relevant here. The nishchandratva test, described above, applies to both grades. The varitara test involves placing a small quantity of the bhasma on the surface of water over a thin film of ghee: an adequately processed preparation will float, indicating very low particle density. A Shatputi preparation is expected to perform this test with greater consistency because the extended processing reduces particle size more thoroughly.
For a manufacturer, producing Shatputi requires substantially more process time, more fuel and longer production cycles than standard Lauh Bhasma. This affects the cost per batch and the turnaround relative to the standard grade. Buyers who treat the two grades as interchangeable for purposes of price negotiation are making a specification error that affects product quality and may create compliance issues if the formulation reference specifies a particular grade.
| Parameter | Lauh Bhasma | Lauh Bhasma Shatputi |
|---|---|---|
| Processing designation | Standard incinerated iron bhasma | Hundred puta incinerated iron bhasma |
| Approximate puta cycles | Lower, varies by classical reference | Approximately one hundred |
| Classical quality tests | Nishchandratva, varitara | Nishchandratva, varitara (more stringent performance expected) |
| Particle fineness | Fine | Finer by classical description and process logic |
| Typical formulation use | Formulations citing standard Lauh Bhasma | Formulations specifically naming Shatputi |
| Cost implication for buyer | Lower per unit | Higher per unit due to extended processing |
Buyers should read this comparison as a formulation specification guide, not as a quality ranking in absolute terms. Classical Ayurvedic texts prescribe each grade for specific applications. Using the lower-cycle grade where Shatputi is specified is a formulation non-compliance, not a cost optimisation.
Classical references that name Lauh Bhasma without a further qualifier generally indicate the standard grade. Shatputi is cited by name only where the extended processing is described as integral to the formulation in the classical source text. Brand owners developing private-label products should identify the classical text and edition used as the reference for the intended formulation, and confirm with their contract manufacturer which grade that reference specifies.
The Bhasma-Pishti range at Raasa Ayurveda covers 35 preparations from its classical Shastrayoga inventory. Buyers requiring bulk supply of either Lauh Bhasma grade should raise the specification question at the initial enquiry stage so the correct preparation is quoted, sampled and documented from the outset. Switching grades after sampling has been approved creates additional paperwork and delays approval.
Before committing to a bulk purchase of either Lauh Bhasma or Lauh Bhasma Shatputi, buyers should clarify several points with their supplier. First, the specific grade being supplied should be expressed as the classical designation and the approximate number of puta cycles completed, not simply as a product name. Second, the scope of the certificate of analysis accompanying the batch should be confirmed, including whether all Ayurvedic Pharmacopoeia of India test parameters are covered. Third, buyers should verify that the supplier holds a valid AYUSH manufacturing licence and a GMP certificate specifically covering the Bhasma-Pishti category.
Buyers intending to export should also compare the iron content levels reported in the certificate of analysis against the finished product limits applicable in the destination market, since regulatory thresholds for oral preparations containing iron vary between jurisdictions and are not always aligned with the Ayurvedic Pharmacopoeia of India ranges.
Independent laboratory verification of a supplier's certificate of analysis, using an accredited testing facility, is a reasonable step for any bhasma product given the regulatory sensitivity of the category. This is particularly advisable for first consignments from a supplier who has not previously been used.
Raasa Ayurveda in Kanpur can provide samples of both Lauh Bhasma grades with accompanying documentation for buyer review. Contact raasaayurveda@gmail.com or call +91 9415128217 to discuss your grade specification and initiate the sampling process before any commercial commitment.
The primary difference is the number of puta cycles in the calcination process. Lauh Bhasma Shatputi undergoes approximately one hundred puta cycles, producing finer particle size and a preparation that meets classical quality indicators more stringently. Standard Lauh Bhasma involves fewer cycles. Classical formulations specify which grade is required and the two should not be interchanged.
Yes. A manufacturer holding an AYUSH licence covering Bhasma-Pishti preparations should be able to supply both grades. Raasa Ayurveda offers both within its 35-item Bhasma-Pishti range. Buyers evaluating which grade to use for a particular formulation should request samples of both and review the accompanying certificates of analysis before specifying a grade for bulk supply.
Identify the classical text and edition used as the reference for your formulation. The text will either name Lauh Bhasma without further qualification, indicating the standard grade, or will cite Shatputi specifically. A qualified Ayurvedic pharmacist or your contract manufacturer familiar with the classical text tradition can assist if the reference is unclear.
Raasa Ayurveda, 49/72-A, Naughara, Kanpur 208001, Uttar Pradesh, India. Telephone +91 9415128217. Email raasaayurveda@gmail.com.