Chu Xiao didn't really like explaining. Since everybody was puzzled in this situation, however, he had to explain to them by himself.
"Do you know about the human scent?" Seeing Yuan Zhou cut quickly and precisely, he also said solemnly.
The two characters of "human scent" stood for too many meanings, so the chefs on site all fell silent.
"The scent of human bodies?" A chef asked tentatively.
"No, it isn't." Chu Xiao frowned again and then said, "Everyone has his own scent and the precious foods are most likely to be contaminated by that."
"I got it. No wonder you have that rule, Master Chu." Master Cheng was enlightened and he suddenly said.
"What rule is it?" A chef didn't really know about that and thus he asked curiously.
"Food ingredients sent to me can't have any scent of humans." Chu Xiao crossed his arms against his chest and said naturally.
All chefs on site got choked by his words.