1, tetanic bacili is bacterium of oxygen of one be disgusted with, the place with common rich oxygen it does not grow.
2, is the knife that cuts course clean? Stainless steel knife, bacterium of oxygen of be disgusted with does not grow.
3, dish, catharsis is clean, do not grow like bacterium of oxygen of be disgusted with.
4, cut points to in the hand, blood stream is rich, hematic oxygen is rich. Bacterium of oxygen of be disgusted with is bad to live.
5, the deepness of cut, the cut of finger won't be very deep, give tetanic bacili to grow without the condition euqally.
6 occupy board, if,family expenses cuts chopping board euqally clean sanitation, need not say.
7, namely in case!
On 8 put together, you already grabbed an attention oneself!