Abstract:

Dampening test of flue-cured tobacco leaves was conducted by combination of different temperature and relative humidity to accelerate moisture absorption after curing, which connected tightly with improvement of grading efficiency in specialized grading and loose-leaf purchasing. It was turned out that moisture absorption rate of flue-cured tobacco was increased when environmental RH added from 70% to 90% at the same temperature, but it was decreased when environmental temperature went up from 30℃ to 45℃ at the same RH. Those results suggested that the dampening rate of flue-cured tobacco leaves were slow in combinations of high temperature and low RH, but it was fast in combination of low temperature and high RH within 30-45℃. The moisture absorption rate was fastest with best performance at temperature of 30℃ and RH of 90%.