China GB Tea Standards: Complete Guide

China’s national tea standards system, known as GB (Guobiao / 国家标准), is one of the most comprehensive tea regulatory frameworks in the world. Managed by the Standardization Administration of China (SAC) and developed with input from the China Tea Marketing Association and agricultural research institutions, these standards govern every aspect of tea production, processing, quality grading, and food safety.

Regulatory Framework

The Chinese tea standards system operates on multiple levels:

  • National Standards (GB / GB/T): Mandatory (GB) and recommended (GB/T) standards applicable nationwide
  • Industry Standards: Specific standards for the tea industry (e.g., NY/T for agricultural industry)
  • Local Standards (DB): Province-specific standards for regional teas (e.g., DB33 for Zhejiang)
  • Group Standards (T/): Association and industry group standards
  • Enterprise Standards (Q/): Internal company standards that must meet or exceed national minimums

Key National Tea Standards

GB/T 14487 - Tea Sensory Evaluation Terms

The foundational standard for all tea tasting and quality assessment in China. It defines the standardized vocabulary used by professional tea tasters across the country, covering appearance terms, aroma descriptors, liquor color characteristics, taste profiles, and infused leaf appearance standards.

GB/T 13738 - Black Tea Standards

Defines quality requirements for China’s three main black tea categories: Zhengshan Xiaozhong (Lapsang Souchong), Gongfu Black Tea (Keemun, Dianhong, Yingdehong), and Broken Black Tea (CTC and Orthodox broken grades). Key parameters: moisture ≤ 7%, water extract ≥ 32%, total ash ≤ 6.5%.

GB/T 14456 - Green Tea Standards

The most extensive tea standard in China, covering the world’s largest tea category: Pan-fired Green Tea (Longjing, Biluochun, Zhucha), Baked Green Tea (Huangshan Maofeng, Taiping Houkui), Sun-dried Green Tea (raw material for Pu-erh), and Steamed Green Tea. Grading system: Grade 1 through Grade 6, with premium grades for high-end teas.

GB/T 22291 - White Tea Standards

Established in 2008, this standard defines China’s white tea categories: Silver Needle (Baihao Yinzhen - single bud, highest grade), White Peony (Bai Mudan - one bud with 1-2 leaves), Gong Mei (Tribute Eyebrow), and Shou Mei (Longevity Eyebrow). Raw material must use Da Bai tea cultivar, primarily from Fuding and Zhenghe, Fujian Province.

GB/T 22111 - Oolong Tea Standards

Covers diverse oolong teas organized by region: Wuyi Rock Tea (Da Hong Pao, Rougui, Shuixian - famous “rock rhyme”), Anxi Tieguanyin (traditional roasted and modern light-roasted styles), Phoenix Dancong (hundreds of fragrance types from Guangdong), and Taiwan Oolong (Dongding, Oriental Beauty, Gaoshan).

GB/T 22111 - Pu-erh Tea Standards

Strict GI standard for Pu-erh tea: Must be produced in designated areas of Yunnan (11 cities, 75 counties). Must use Yunnan large-leaf variety. Defines Raw Pu-erh (Sheng - naturally aged) and Ripe Pu-erh (Shou - post-fermented via wet piling). Includes compressed forms (cake, brick, Tuocha, etc.). Properly stored Pu-erh improves with age.

Food Safety Standards

GB 2762 - Contaminant Limits

National food safety standard for maximum levels of contaminants in tea: Lead (Pb) ≤ 5.0 mg/kg, Cadmium (Cd) ≤ 1.0 mg/kg, Total arsenic (As) ≤ 2.0 mg/kg, Rare earth elements ≤ 2.0 mg/kg.

GB 2763 - Pesticide Residue Limits

The most comprehensive pesticide standard with over 400 pesticides having established MRLs for tea. Regularly updated to align with international requirements and domestic food safety priorities.

Sensory Evaluation Method

Professional tea evaluation in China follows a standardized methodology: 3g tea leaves, 150ml boiling water (100°C), 5 minutes steeping. Evaluation sequence: Dry leaf appearance → Aroma → Liquor color → Taste → Infused leaves. 100-point scoring system (appearance 20%, aroma 30%, taste 30%, liquor color 10%, infused leaves 10%). Minimum 3 certified tasters, results averaged.

Certification Bodies

  • China Tea Quality Supervision and Inspection Center - national-level tea testing authority
  • Tea Research Institute, CAAS - research and standards development
  • Provincial Tea Testing Stations - regional testing and certification
  • CNCA - Certification and Accreditation Administration

Understanding GB standards is essential for anyone sourcing tea from China, as these standards form the foundation of quality assurance in the world’s largest tea-producing nation.