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Mixed meals (meat & grain combinations) — HMTc Standard

Standard

The Heavy Metal Tested & Certified standard for mixed infant meals combining meat and grains, stated as-consumed. Every limit is the strictest maximum level any credible government sets, converted to the as-consumed basis, with read-across where no government regulates the exact product.

How limits are set

The standard for each analyte is the strictest maximum level set by any credible government regulator — the European Union, the United Kingdom, Codex Alimentarius, Health Canada, China, India, Brazil, the Gulf states (GSO), Australia/New Zealand, and the US FDA — converted into Mixed meals (meat & grain combinations)’s own as-consumed basis. It is a lookup of sovereign law, carrying at most one disclosed basis conversion where the law is written in another basis, and an explicit read-across where no government regulates the exact product. A certified product sits at or below every applicable sovereign limit at once.

Where no government regulates the exact product for an analyte, the standard does not go blank or invent a number: the limit is read across from the nearest government value for an analogous product, so a certified product still sits at or below a real sovereign limit. The ratchet tightens these after publication as surveillance warrants.

↓ Download this standard (PDF, v1.0) Versioned, citable, self-contained.

Master Limit Table

All values in ppb (µg/kg), as-consumed basis. Every analyte carries a firm ceiling. A brand meeting every value on a like-for-like basis qualifies for the mark.

Every claim analyte is equal at the gate. A product is certified only when every analyte is at or below 100% of its published government floor or disclosed read-across; above the limit, on any metal, it is not certified and carries no mark. Arsenic is limited in both forms: total arsenic (tAs) and inorganic arsenic (iAs) are separate ceilings that must both be met, and the species result never replaces the parent total. Total chromium is limited as shown; hexavalent chromium is controlled through it — mandatory Cr-VI speciation on any total-chromium result above 100 ppb, and any quantifiable Cr-VI fails.

Derivation

The full derivation for Mixed meals (meat & grain combinations). Each row lists every government maximum level in force worldwide, converted to the as-consumed basis; the HMTc limit is the strictest of them, and the last column names which sovereign law binds. A blank cell means that government sets no limit for this analyte in this product.

AnalyteEUUKCodexChinaIndiaBrazilGSOHMTcBinds
Lead (Pb)——20¹—200¹10—10Brazil
Inorganic arsenic (iAs)20¹——200¹—150¹—20EU
Total arsenic (tAs)————50¹——50India
Mercury (tHg)———————8IL
Cadmium (Cd)40¹40¹—60¹100¹50¹40¹40EU
Total chromium (Cr)———————500HK
Nickel (Ni)500¹——————500EU
Tin (Sn)————5000¹——5000India
Aluminium (Al)———————500²read-across

All values µg/kg (ppb), as-consumed basis. ¹ basis-converted at the 8:1 powder-to-liquid ratio — the only such ratio a government legislates (China GB 2762 footnote c). ² read-across: no government sets this analyte for this exact product; the value is read across from the nearest government value for an analogous product. ³ not material in this matrix: measured but with no standalone number, controlled by the total-metal screen, not an invented value.

Occurrence and derivation rationale

For each analyte on the panel: what the peer-reviewed and survey literature measured in this category, cited one way to the Heavy Metal Index, and the Method v2.0 reasoning behind the certification limit — including, where no government sets a number, why the program sets one anyway. Occurrence figures are literature findings; the derivation is the certifier's.

2 studies in the certified-market pool measured lead in Mixed Meals, Non-Rice across 108 certified-market samples. The pooled distribution centres on a median of 0.2 ppb and reaches 3.9 ppb at the 95th percentile, with a measured maximum of 13 ppb. FDA 2024, Starska 2011.

2 studies · 108 samples · median 0.2 ppb · P95 3.9 ppb

HMTc sets 10 ppb (regulatory-alignment): the strictest applicable government maximum level for this product form, adopted under Method v2.0 as the default certification standard. The certified-market pool's P97 is 7.6 ppb (provisional), against a government ceiling of 10 ppb. Why lead is limited →

Inorganic arsenic

No citable primary occurrence measurement is routed to this cell in the corpus.

HMTc sets 20 ppb (regulatory-alignment): the strictest applicable government maximum level for this product form, adopted under Method v2.0 as the default certification standard. The certified-market pool's P97 is 31 ppb, at or above the government ceiling of 20 ppb, so the government maximum binds. Why inorganic arsenic is limited →

Total arsenic

2 studies in the corpus measured total arsenic in Mixed Meals, Non-Rice (561 samples reported across those studies): Starska 2011, FDA 2024. Reported concentrations range from 0 ppb to 14 ppb, with a typical value of 3 ppb.

2 studies · 561 samples in the corpus · measured max 14 ppb

HMTc sets 50 ppb (regulatory-alignment): the strictest applicable government maximum level for this product form, adopted under Method v2.0 as the default certification standard. Why total arsenic is limited →

Total mercury

2 studies in the corpus measured total mercury in Mixed Meals, Non-Rice (519 samples reported across those studies): FDA 2024, Starska 2011. Reported concentrations range from 0 ppb to 0.4 ppb, with a typical value of 0 ppb.

2 studies · 519 samples in the corpus · measured max 0.4 ppb

HMTc sets 8 ppb (regulatory-alignment): the strictest applicable government maximum level for this product form, adopted under Method v2.0 as the default certification standard. Why total mercury is limited →

3 studies in the certified-market pool measured cadmium in Mixed Meals, Non-Rice across 1045 certified-market samples. The pooled distribution centres on a median of 0.9 ppb and reaches 4.3 ppb at the 95th percentile, with a measured maximum of 44 ppb. Starska 2011, FDA 2024, Collado-Lopez 2025.

3 studies · 1045 samples · median 0.9 ppb · P95 4.3 ppb

HMTc sets 40 ppb (regulatory-alignment): the strictest applicable government maximum level for this product form, adopted under Method v2.0 as the default certification standard. The certified-market pool's P97 is 5.1 ppb, against a government ceiling of 40 ppb. Why cadmium is limited →

No citable primary occurrence measurement is routed to this cell in the corpus.

HMTc sets 500 ppb (regulatory-alignment): the strictest applicable government maximum level for this product form, adopted under Method v2.0 as the default certification standard. The certified-market pool's P97 is 180 ppb, against a government ceiling of 500 ppb. Why nickel is limited →

No citable primary occurrence measurement is routed to this cell in the corpus.

HMTc sets 5 mg/kg (regulatory-alignment): the strictest applicable government maximum level for this product form, adopted under Method v2.0 as the default certification standard. Why tin is limited →

3 studies in the corpus measured aluminium in Mixed meals (meat & grain combos), non-rice (2068 samples reported across those studies): Ibrahim 2025, Stahl 2017, Sipahi 2014.

3 studies · 2068 samples in the corpus

HMTc sets 500 ppb by read-across: government read-across (AU-NZ Schedule 19 infant-formula Al 500, the only government aluminium ML in any jurisdiction) applied at face value; the 8:1 reconstitution factor is formula-specific and is not applied to a non-formula product. Why aluminium is limited →

Risk Flag

On the published occurrence literature to date, Mixed meals (meat & grain combinations) shows no systematic gap between typical market levels and the limit — the limit being the strictest government maximum for the product (Method v2.0). Certification is decided on a product’s own tested result, not on a distribution; an individual lot or supplier can still exceed a limit.

See the cross-category summary of the ingredients that most often struggle.

Cite this standard

Pendergrass, K. (2026). Mixed meals (meat & grain combinations): HMTc standard (Standard No. 10.83138/hmtc.std.1.mixed-meals). Institute of Contaminant Standards. https://doi.org/10.83138/hmtc.std.1.mixed-meals

© 2026 Institute of Contaminant Standards / Heavy Metal Certified. All rights reserved.

The literature baseline for every analyte is maintained independently at the Heavy Metal Index. This certification standard applies those findings; the two are kept editorially separate by design.