Buy ZWILLING Sharpening stone

Kept my old chef's knife from getting relegated to the drawer after years of neglect. About ten minutes on this stone and it's slicing tomatoes without crushing them. I do a few passes every couple weeks now to keep the edge.

Took a few passes to get the angle right, but now my paring knife glides through tomatoes instead of squashing them. The stone is coarse enough to actually bring back an edge without needing much pressure. Worth the ten minutes it takes.

My chef's knife had been dragging through tomatoes for weeks and this stone brought the edge right back. A few minutes of regular maintenance and it glides again. Nice weight to it too, doesn't slide around on the counter.