What I found interesting when learning more about sharpening is that you’re actually looking for the edge of the blade to bend. That bend creates the “burr” and you can feel it by running your finger along the flat of the blade towards the edge. A consistent burr across the blade is one way to know it’s sharpened enough. Then you hone that burr until it is straight.

When you no longer have a burr which can be honed, it’s time to sharpen again.