How consistent is the quality between batches?
Batch consistency is one of our core quality guarantees. Every batch is tested against the same specification window, and blending is used to normalize seasonal variation in the natural raw material.
Consistency Management
| Measure | Detail |
|---|---|
| Fixed spec window | Density, RI, rotation, acid value, carbonyl, GC-MS profile per spec |
| GC-MS fingerprint | Every batch compared against the reference chromatogram |
| Blending | Off-spec natural variation corrected by careful lot blending |
| Batch archive | Retained samples of every batch for re-testing on request |
| Continuous monitoring | Statistical trending of key parameters across seasons |
- Natural essential oils vary with harvest year, but our blending policy keeps trans-cinnamaldehyde and the odor profile inside the commercial tolerance (carbonyl ≥80%, trans-cinnamaldehyde ≥74% GC)
- If your formula needs an even tighter window (e.g. fixed coumarin level for EU cosmetics), we can hold dedicated blend lots for your SKU
- Retained samples are stored for 36+ months; any complaint can be verified against the archive
- A side-by-side GC-MS comparison of two batches is available as a free service for qualifying buyers
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This article was published on 2026-09-07, and last updated on 2026-09-07. The article will be continuously updated.
