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How do you ensure batch-to-batch consistency?

Consistency is controlled at every stage: contracted growers, fixed distillation parameters and full QC release for each lot.

Control PointMeasure
Raw materialFixed sourcing region and flower grade
Harvest standardFixed picking time (dawn) and flower maturity
DistillationFixed steam ratio, duration and cooling curve
QC releasepH, SG, GC-MS fingerprint and microbial tests
Retained samplesKept per batch for 24+ months
Because rose is a seasonal crop, slight natural variation between harvest years is possible and is normal for an unblended natural product. For programs that need tight aroma tolerance, we can blend batches from the same season under controlled parameters.

Ask about our batch-blending service if your formulation needs year-round identical profiles.

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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.