Question:
Is it possible to use a knive sharpener both for milchig and fleischig knives? or do we need 2 separate knive sharpeners?
Answer:
Hello,
Technically you could use the same sharpener for both milchig and fleishig knives, as long as the knives were clean when they were sharpened. Some people however have the custom to use different sharpeners.
Best wishes
Sources:
Bais Yosef Y:D 122 in the name of the Mordechai