How do you test for heavy metals and pesticide residues?
Every batch of Sichuan pepper oil is screened for heavy metals and pesticide residues against Chinese national limits (GB 2762 and GB 2763).
Safety Testing
| Parameter | Limit reference | Method |
|---|---|---|
| Lead (Pb) | GB 2762 | ICP-MS / AAS |
| Arsenic (As) | GB 2762 | ICP-MS / AAS |
| Cadmium (Cd) | GB 2762 | ICP-MS / AAS |
| Mercury (Hg) | GB 2762 | ICP-MS / AAS |
| Pesticide residues | GB 2763 | GC-MS/MS multi-residue screen |
| Peroxide value | ≤ 0.25 g/100 g (T/TSSP 039-2023) | GB 5009.227-2023 |
| Microbiological | Food-grade limits | GB 4789 series |
- Source pericarps are screened pre-extraction; finished oil is re-tested post-release
- Extended European Pharmacopoeia limits (incl. multi-element scan) can be added on request
- Results are printed on the COA; full analytical reports are available under NDA
Relate Products
This article was published on 2026-09-07, and last updated on 2026-09-07. The article will be continuously updated.
