Whetstones are very porous, therefore need to be cleaned and properly maintained. The nagura stone helps lift pieces of steel and stone that may have gotten trapped in those pores. This exposes the cutting properties of the stone, thus helping you sharpen your knives.
Whetstones are very porous, therefore need to be cleaned and properly maintained. The nagura stone helps lift pieces of steel and stone that may have gotten trapped in those pores. This exposes the cutting properties of the stone, thus helping you sharpen your knives.