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How do you ensure batch-to-batch consistency across seasons?

Every batch is GC-MS fingerprinted and matched against reference chromatograms from the approved sample; density, refractive index and optical rotation are checked against GB 1886.274-2016 limits, and out-of-spec lots are blended or rejected before release.

Consistency Controls

ControlMethod
ChromatographicGC-MS fingerprint vs approved reference
PhysicochemicalDensity, RI, optical rotation per batch
SensoryPanel check of aroma against standard
BlendingCross-lot blending to stabilize profile
DocumentationCOA with full data per batch
We keep a master reference chromatogram per season and blend lots to match it, so your formula stays stable batch after batch — critical for branded perfumery and cosmetics where drift means relabeling. Sample-matched production is our standard practice.

Provide your acceptance tolerances and we will state them in the supply agreement as the release criteria.

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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.