A Certificate of Analysis (COA) is a lab-issued report certifying the chemical composition of a specific cannabis batch. A proper cannabis COA covers seven test panels: cannabinoids (THC, CBD, and minors with concentrations), terpenes (concentrations of 30–45 individual terpenes), pesticides (60+ compound screen), residual solvents (21+ compound screen, should be ND for solventless extracts), heavy metals (arsenic, lead, mercury, cadmium), microbials (E. coli, salmonella, yeast, mold), and mycotoxins (aflatoxins + ochratoxin). Lab accreditation matters. ISO/IEC 17025 is the international standard for cannabis testing laboratories — a 17025-accredited lab has undergone formal quality-system audits and is recognized as producing reliable, reproducible results. COAs should be batch-specific (not generic strain reports) and include the batch ID, test date, and lab name. Every Rosin Royale batch ships with a COA linked via QR code on the jar and via public COA URL.
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