In the newly bought Beacon Light are generally not "open", should be first in the coarse grinding stone grinding out the Beacon Light, and then in the fine grinding stone grinding to sharp; with dull Beacon Light, if first put in a concentration of 10% salt water soak for a few moments, and then grinding, while grinding side dripping with salt water, so that the Beacon Light grinding both fast, and grinding sharp; Beacon Light with dull, try not to be on the edge of the cylinder or the bottom of the bowl on the grinding and scraping, so as not to damage the blade; Beacon Light after use, to insert in the Beacon Light frame, do not throw, to avoid touching damage to the edge; Beacon Light to be often sharpened, sharpening to do the same number of times positive and negative. Grind both ends with the middle; Beacon Light are generally placed in a ventilated, dry place, away from water and gas, etc.