1. packaging: the packaging of teabags should comply with relevant laws and regulations, without damage, leakage and peculiar smell.
2. Vision: The appearance of teabags should be neat, dry and even in color, without obvious leaf cracks, insect eyes or impurities.
3. Aroma: The teabag should have strong tea fragrance, no peculiar smell, rancidity and rancidity.
4. Taste: The taste of teabags should be fragrant, fresh, rich and sweet.
5. Solubility: Teabags should be easily dissolved and not easily turbid.
6. Tea quality: The tea quality of tea bags should meet the corresponding national standards and regulations, without excessive tea stalks and tea powder, with complete tea shape, bright color and few miscellaneous teas.
7. Testing: Teabags need quality testing and inspection. Detection items include pesticide residues, heavy metals, molds, radioactive substances, etc. Ensure the safety and health of teabags.