GH/T 1308-2020 in English

VALID

Mengdingshan tea- Part 2:Green tea

Issued on:2020-12-07
Implemented on:2021-03-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $150.00
$146.00

Standard No:	GH/T 1308-2020
Document status:	VALID
Title in English:	Mengdingshan tea- Part 2:Green tea
Title in Chinese:	蒙顶山茶第2部分：绿茶
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2020-12-07
Implemented on:	2021-03-01
ICS Classification:	67.140.10-Tea
Chinese Classification:	X55-Tea products
Related Keywords:	green tea steamed green tea green tea introduction analysis mountain tea green mengding ganlu tight
Related Topics:	green tea Mountain as1308 Detection of green tea camellia GH 2 Mengshan tea gh/t green tea poo green alcohol gh/t 1161

本文件规定了蒙顶山茶绿茶的术语和定义、产品分类及实物标准样、品质要求、试验方法、检验规则、标志、标签、包装、运输和贮存。
本文件适用于蒙顶山茶区范围内，以茶树［Camellia sinenisis(Linnaeus)O.kuntze］嫩芽叶为原料，经摊青（或贮青）、杀青、摊凉、揉捻（或理条）、复炒（烘）、复揉（或压扁）、做形、干燥、整形、分选、归类等加工工序加工而成的具有特定品质特征的蒙顶山名优绿茶。
本文件不适用于蒙顶山茶区的普通炒青、烘青、蒸青、晒青及结合工艺制成的等级绿茶（或称大宗绿茶）。

Introduction

Analysis of the core content of the standard

GH/T 1308-2020 specifies the product classification, quality requirements and inspection methods of Mengding Mountain Tea green tea, and is applicable to the special and high-quality green tea produced by specific craftsmanship in the Mengding Mountain tea area of Sichuan. The standard divides the products into two categories: special famous tea (Mengding Shihua, Mengding Ganlu, etc.) and special high-quality tea (Mengshan Chunlu, Mengding Mountain Yinhao, etc.), and sets grades from special grade to first grade for each.

Sensory quality grading system

Tea types	Appearance characteristics	Aroma requirements	Soup color standard
Mengding Shihua	Flat and straight, with hidden hairs visible	Fresh chestnut aroma (special grade)	Bright green
Mengding Ganlu	Tight and fine curls, with obvious white hairs	Fragrant tender hairs	Bright apricot green
Mengding Ganlu	Tight and fine curls, with obvious white hairs	Bright tender hairs	Bright apricot green
Mengshan Maofeng	tight, straight and beautiful, with exposed tip	fresh, tall and long	green and bright

Key technical indicators

The standard has strict regulations on physical and chemical indicators: water content ≤7.0%, water extract ≥35.0%. The broken tea rate requirement for specialty teas is more stringent, and the special products shall not exceed 1.0%, which is significantly higher than the standard for bulk green tea.

Mengding Shihua Special Grade: Moisture ≤6.5%, Broken Tea ≤0.5%
Mengding Ganlu Special Grade: Powder ≤1.0%, Ash ≤6.5%
Pesticide residue limit strictly implements GB 2763 standard

Process Characteristics Comparison

The standard clearly defines the process differences of different tea types: Mengding Shihua adopts the strip shaping process, Mengding Ganlu needs to go through the twisting process, and Mengding Shanyulu as a steamed green tea has a unique process route. During the processing, key parameters such as spreading time and killing temperature directly affect the final quality.

Implementation Suggestions

Manufacturers should establish a physical standard sample control system and update it every 3 years
It is recommended to use low-temperature nitrogen-filled packaging technology to meet moisture control requirements
The temperature must be maintained at ≤25℃ and the relative humidity must be ≤60% during transportation
Establish a full traceability system from fresh leaves to finished products

Standard Evolution Analysis

Compared with the old version of the standard, the main improvements of GH/T 1308-2020 include: ① Adding 3 categories such as Mengding Mountain Silver Hao; ② Refining the physical and chemical indicators of special-grade products; ③ Strengthening the requirements for food safety indicators. This standard and the GH/T 1307 basic requirements standard constitute a complete technical system, reflecting the special requirements of Mengding Mountain tea as a geographical indication protected product.

More samples: GB 50021-2001(2009) DL/T 368-2010 NB/T 47013.2-2015

Sample only — not a preview of GH/T 1308-2020