ISO 3720 Ceylon Tea Purity Standards
Learn how the international ISO 3720 standard tests Ceylon Black Tea to guarantee 100% purity, rich flavor, and zero fillers.
The global gold standard for pure black tea — ensuring rich natural flavor, tender leaf content, low moisture, and zero artificial fillers for every Ceylon tea export.
6 Core Quality Measures of ISO 3720
Laboratory tests required by the Sri Lanka Tea Board and international customs for all export-grade pure black tea.
Ensures rich natural antioxidants and full flavor in every brewed cup.
Measures natural tea plant minerals, proving zero dust or dirt contamination.
Verifies tea leaf freshness and proves no old or spent leaves are used.
Guarantees zero sand or environmental soil particles in the tea.
Ensures tea is made from tender young leaves rather than coarse wooden stalks.
Keeps the tea crisp and fresh, preventing any mold growth during shipping.
How ISO 3720 Protects Ceylon Tea Quality
Following ISO 3720 standards is the foundation of Ceylon tea quality. Created by the International Organization for Standardization, ISO 3720 defines the clear benchmarks that separate real black tea from low-quality substitutes.
By testing every batch before auction sale, Sri Lanka maintains an unmatched global reputation for purity. Importers can present these official Certificates of Analysis directly to customs and food safety authorities worldwide.
- Random Warehouse Sampling: Inspectors draw real samples directly from export warehouses.
- Certified Lab Tests: Accredited labs test tea extract, ash purity, and moisture levels.
- Export Certificate: Approved lots receive an official Certificate of Analysis with their shipping documents.
Request Test Reports
QUALITY ASSURANCE
Request ISO 3720 laboratory test certificates and quality sheets for your export orders.
Source Certified ISO 3720 Ceylon Tea
Order authentic Ceylon tea backed by official Certificates of Analysis from the Sri Lanka Tea Research Institute and Sri Lanka Standards Institution.
Frequently Asked Questions
ISO 3720 tests 6 core quality measures: 1) Natural tea extract (min 32.0%), 2) Pure mineral ash (4.0% to 8.0%), 3) Fresh leaf ash (min 45%), 4) Clean ash balance, 5) Zero sand or dirt (max 1.0%), and 6) Low woody stem fiber (max 16.5%).
