The Step That Makes or Mars Every Cup of Assam

Before a leaf is ever rolled or crushed, it spends 9 to 18 hours doing nothing but losing weight in a long metal trough. Here is what withering actually does to the leaf, why CTC and orthodox want it done to different degrees, and what a factory's wither percentage really measures.

Fired to Three Percent, and What Burns to Get There

Firing drives a fermented Assam batch down to about 3 percent moisture in twenty minutes of hot air, the number that decides whether the leaf keeps or rots. Here is what the driers actually do, the rate that can ruin a batch even at the right final number, and why the fuel underneath them is quietly changing.