I was worried about this when I started. The truth is, you can still get a sharp edge if your angle game is a bit vague. As long as you’re between 15 and 20 degrees per edge, and when you’ve sharpened to the edge you go by feel, you’re fine. For the 15 degrees, I always go to 45, then look for a third to less than a half of that. The common advice of putting 2 10p coins under the back never made sense to me because knives have different widths, hence you will get different angles. Practice is your friend.
I was worried about this when I started. The truth is, you can still get a sharp edge if your angle game is a bit vague. As long as you’re between 15 and 20 degrees per edge, and when you’ve sharpened to the edge you go by feel, you’re fine. For the 15 degrees, I always go to 45, then look for a third to less than a half of that. The common advice of putting 2 10p coins under the back never made sense to me because knives have different widths, hence you will get different angles. Practice is your friend.