"When you're selling snacks, the hot ones need to be hot and the cold ones cold," remarks Hsu Kuo-lung, a teacher at the Universal Foods and Drinking Training College on Chungshan North Road.
「賣小吃，就是冰得要冰，熱得要熱，」論起小吃，學問可是不小。中山北路上廚房教室裡的師傅徐國龍，邊攪動著傳來陣陣香味的美食，邊傳授「心法」。