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What are the heavy metal limits and which testing standards apply?
Heavy metal testing is performed per batch and reported in the COA. All limits comply with the most stringent global food safety standards — US FDA, EFSA (EU), and Japan's MHLW. The 30% concentration does not affect the heavy metal profile — testing applies uniformly across all grades.
Heavy Metal Limits (Food Grade)
| Metal | US FDA (ppm) | EU EFSA (ppm) | Japan MHLW (ppm) |
|---|---|---|---|
| Lead (Pb) | ≤0.1 | ≤0.1 | ≤0.1 |
| Arsenic (As) | ≤1.0 | ≤0.5 | ≤0.1 |
| Cadmium (Cd) | ≤0.1 | ≤0.1 | ≤0.1 |
| Mercury (Hg) | ≤0.1 | ≤0.1 | ≤0.05 |
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This article was published on 2026-09-02, and last updated on 2026-09-02. The article will be continuously updated.
