Turn the mug upside down so that the bottom is facing upward.Keeping approximately a 22° angle, and moving heel to tip, swipe one side of the blade across the mug’s ceramic grit. Perform this motion several times.Flip the knife and perform the same process on the other side. Remember to maintain the 20° angle.Switch sides of the blade per swipe only for the last two to three swipes.Use a honing rod to smooth out any remaining kinks, burrs, or abrasions.