Tagged: aroma chemistry
Article · Oxidation & Roast
A Rainy Pick Day Caps a Rock Tea's Aroma, and No Roast Recovers It
A 2025 GC-MS study found rainy-day-picked Wuyi rock tea carries 40 to 74 percent less floral and fruity aroma compound than sunny-day leaf, and processing cannot fully make up the deficit.
Article · science
The Old Rule About Spring and Autumn Tea, Tested Against 266 Cups
Anxi trade wisdom credits spring Tieguanyin with the fuller cup and autumn with the better scent. A 2025 study of 266 finished teas checked the chemistry, and found the saying right about direction and nearly silent about how much a buyer should let it decide.