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How is this tangerine oil tested for heavy metals and pesticide residues?

Every lot is screened before release; nothing ships without passing.

Test panel

GroupItems
Heavy metalsPb, As, Cd, Hg, Cu (GB 5009 series)
Pesticide residuesMulti-residue screen against destination-market MRLs
MicrobiologyTotal plate count, coliforms, mould and yeast, pathogens (GB 4789 series)
Solvent residueNot applicable — the process is solvent-free; verified where a buyer requires it
Lots above any limit are blocked. Buyers can name a specific panel or request third-party verification, and the results are added to the shipment documents.

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This article was published on 2026-09-29, and last updated on 2026-09-29. The article will be continuously updated.

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Guilin Four Seasons Sunshine

Founded in 2006, Guilin Four Seasons Sunshine F&F Co., Ltd. is a natural plant extract manufacturer and OEM/ODM partner in Guilin, China, combining proprietary Living-Fragrance physical extraction with supercritical fluid extraction to deliver pure, traceable botanical ingredients to global food, flavor, fragrance and personal care brands. test