The new bamboo chopping board regardless of positive and negative, you start with the side is positive, beginning with both sides are never mind, but after a period of time is not OK, because there is a certain will turn black, slowly you will not use there.
There is no solution to this problem, because the bamboo chopping board has no positive and negative sides.
On the market to buy cheap bamboo chopping board, is not divided into positive and negative, almost all sides are the same, which side is smooth with which one is good, and the price of your good quality point of brand bamboo chopping board is divided into positive and negative, surrounded by a groove is the positive side, to move on, smooth without groove side is opposite to down, the groove is used to collect food juice cut vegetables, prevent the juice flow to the operating table, and then flow into a negative, a long time will damp moldy black side board! But I personally love to smooth the opposite to cutting, because the side of the groove although can collect the juice, but the board give good dishes by hand to draw in the basin, there is always the food groove can be drawn into the basin, especially in trouble! So in the end how to use a personal habit!
