We can start from the following aspects: 1. Packaging: Check whether the packaging is intact, whether the printing is clear, and whether the label has information such as product name, production date and shelf life in Chinese and English. 2. Aroma: The real Siraitia grosvenorii, Loquat and Sydney health tea should have a strong natural aroma and no smell of chemical additives. 3, taste: after drinking, the real Siraitia grosvenorii loquat fruit Sydney health tea should have a touch of sweetness, not too sweet sugar water. 4, clarity: the real health tea should be clear and transparent, without precipitation or turbidity.