Air-to-Bean Ratio
The same amount of heat can be transferred to the beans using either a low quantity of air at higher temperature or using a larger amount of air at lower temperature.
等量的熱被傳遞到豆子，可使用高溫少量的空氣或較低溫大量的空氣
文摘自THE CRAFT AND SCIENCE OF COFFEE p256
#這指的是風流吧