1. Color:

Oven-dried green tea naturally tends to be greenish. Although the tea soup of oven-dried green tea is yellowish, the brewed leaves are green; fresh green tea looks vibrant, while expired green tea appears dull. Fresh sun-dried raw tea, if the leaves are thick, mostly appears dark green, with a green or yellow-green tea soup. After storage, the cake surface becomes glossy, which is significantly different from oven-dried tea.

2. Appearance:

Looking at the raw tea cake, sun-dried raw tea cakes become tightly compressed after 3-5 years because tea gelatin substances begin to release. The tea strands will turn dark black, tea buds will yellow, and a clear tea aroma is noticeable upon smelling. If it's oven-dried, the raw tea cake surface will be loose, strands easily fall off, leaves turn slightly yellow, and there's little tea fragrance when smelled.

3. Taste:

Oven-dried tea has a sweet and clear aroma upon entry, with a sharp and floating fragrance; sun-dried tea carries a grassy note with a rich and deep aroma. The brewed tea soup of sun-dried tea is thicker, has a gelatinous quality, and is also very durable; even after ten infusions, the flavor doesn't change much and becomes increasingly sweet. If it's oven-dried or high-temperature fixed, the tea soup will be clearer, less durable, and lose most of its taste around ten infusions.

4. Bitterness Level:

If comparing oven-dried and sun-dried raw tea made from leaves of the same region, oven-dried raw tea has lower bitterness and astringency. Relatively, sun-dried raw tea has higher bitterness and astringency.