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How are heavy metals and pesticide residues controlled and tested?

Raw flower material is screened against GB 23200.10-2016 covering 488 pesticide residues by GC-MS, and finished oil is checked for heavy metals — this double gate keeps the oil within the strictest commercial limits for cosmetics and food-flavor use.

Testing Matrix

ParameterMethodLimit Direction
Pesticide residues (488)GB 23200.10-2016 GC-MSBelow EU/US MRL thresholds
Lead (Pb)ICP-MS / AAS≤ 10 mg/kg
Arsenic (As)ICP-MS / AAS≤ 3 mg/kg
Mercury (Hg)AFS≤ 1 mg/kg
Cadmium (Cd)ICP-MS / AAS≤ 1 mg/kg
Mycotoxins / microOptional per target marketOn request
Residue status is recorded per raw-material lot, so a failed field lot is rejected before it ever enters the still. For orders to strict destinations we issue the full residue and heavy-metal report with the COA.

State your destination market and we will run the test panel required by that market's import authority at no extra lead time.

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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.