GH/T 1445-2023 in English
VALIDTongbai Yuye tea
- Issued on:2023-12-20
- Implemented on:2024-06-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$117.00
| Standard No: | GH/T 1445-2023 |
| Document status: | VALID |
| Title in English: | Tongbai Yuye tea |
| Title in Chinese: | 桐柏玉叶茶 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2023-12-20 |
| Implemented on: | 2024-06-01 |
| ICS Classification: | 67.140.10-Tea |
| Chinese Classification: | X55-Tea products |
| Related Keywords: | tongbai yuye tea
tongbai yuye tea introduction analysis tongbai county green tea conventional green tea |
| Related Topics: | tea
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本文件适用于南阳市桐柏县行政区域内生产的桐柏玉叶茶。
Introduction
Analysis of the core content of the standard
GH/T 1445-2023, as a special standard for Tongbai Yuye Tea, systematically regulates the technical requirements of the specialty green tea of Tongbai County, Nanyang for the first time. The standard innovatively establishes a four-level quality evaluation system, dividing the quality by six dimensions such as appearance, soup color, and aroma.
Sensory quality grading system
| Grade | Appearance characteristics | Aroma requirements | Taste threshold |
|---|---|---|---|
| Special grade | Flat and straight, tender green and fresh | Fresh and tender fragrance | Fresh and sweet aftertaste |
| First grade | Straight and smooth | Long-lasting fragrance | Rich and fresh |
| Second grade | Still straight | Fragrant with floral fragrance | Rich and mellow |
| Level 3 | Uniform | Pure | Strong and Rich |
Key Technical Indicators
The standard sets a strict requirement of water content ≤ 6.5%, which is 0.5 percentage points higher than the standard for conventional green tea. The requirement of water extract ≥ 36% reflects the quality control of tea soup concentration. In actual testing, it is recommended to use the boiling water extraction method of GB/T 8305.
Key points for the implementation of the standard
- Raw material control: Suitable tea tree varieties grown in Tongbai County must be used
- Technical key: Clarify the processing flow of spreading-killing-humidification-glazing
- Detection focus: Factory inspection must include three core indicators: sensory, moisture, and powder
Comparison between the old and new standards
Compared with the original local standards, the 2023 version adds:
- Pesticide residue limits directly quote the latest version of GB2763
- Clarify the moisture and exposure requirements in the transportation link
- Supplement the triggering conditions for type inspection

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