❓ Frequently Asked Questions (FAQ)
What are the exact heavy metal units for this record?
Per the Fenton Woods Laboratories reporting guidelines on Page 2, all inorganic analysis figures are reported in mg/kg or ppm (parts per million). The recorded lead level of 0.323 ppm sits safely below the strict compliance limit of < 1.20 mg/kg specified by the NIST SRM 3299 standard.
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Why is there a multi-month gap between the lab date and this official publication?
To deliver absolute scientific certainty, USGinger observed an intentional post-testing stability hold following the February 20, 2026 lab evaluation. This allowed us to actively monitor the biological tissue's structural permanence over time, proving the chemical baseline remains completely stable before making the data public. -
Why are the curcuminoid concentrations lower than the reference standard?
The specification column displays a fresh reference standard. The lower concentrations recorded in our sample (0.74 mg/g Curcumin) represent the natural chemical transformation of biological rhizome tissue across an unprecedented 8-year environmental stasis timeline, creating a highly rare degradation benchmark for agricultural machine learning model calibration. -
What are the heavy metal reporting units for this record?
Per the Fenton Woods Laboratories reporting criteria, all inorganic analysis values are reported directly in mg/kg or ppm (parts per million). Our verified trace lead level of 0.323 ppm sits safely below the strict compliance threshold limits specified by the standard.
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🔬 Retrospective Data Context: Understanding the 2018 Stasis Profile
This dataset provides an authentic, unedited historical record of our 2018 California Turmeric Root Rhizomes. In interests of absolute scientific integrity, USGinger publishes these results without modification or filtering.
The Longevity Decay Curve: While fresh turmeric typically carries higher curcuminoid levels, this specific batch represents the chemical reality of biological material after 8 years of non-refrigerated stasis. The delta between the standard specification (12.17 mg/g) and the result (0.74 mg/g) maps a vital, real-world longevity profile rather than a commercial consumer supplement profile.
Low Moisture Stability: The ultra-low 2.1% moisture content confirms that the structural degradation was driven entirely by time and metabolic stasis, completely free from bacterial, yeast, or mold spoilage (Total Aerobic Count remains highly controlled at 1.7 x 10⁵ CFU/g).
This documentation is intended solely for data scientists calibrating machine learning models or researchers investigating botanical degradation timelines.

