Traditionally, in a lot of specialty companies, coffee will come out of the roaster into a cooling tray and a fan will drag ambient air through the bed of coffee to cool it down to room temperature within two or three minutes.

上，在很多专业公司里，咖啡会从烘焙机里来放到冷却盘里，然后用风扇将周围的空咖啡床，在两三分钟内将咖啡冷却到室温。