My tools serve me, not the other way around. It’s not worth the time and effort to wash by hand or sharpen on a whetstone. I don’t need an expensive knife to cook at home. A pull through sharpener and honing steel are adequate. Get the right material and you don’t have to worry about the metal in the dishwasher.
I use knives I have pilfered from various places I have worked at and they are around 10 - 40 years old, some are really good knives though. I have ever only used 2 pull through sharpeners and the current one is maybe 15 years old. I have also only washed my knives in a dishwasher as long as I have had access to one, so like 20 years, and there has been no noticeable difference.
I also have a cast iron pan that’s at least 40 years old, I commonly wash it in the dishwasher and it’s indestructible. If it gets some rust on it I just scrape it off with steel wool and add a little oil. It works as well as it did 40 years ago. People are way too anal about kitchen tools.
I’m pretty sure the idea that a dishwasher can ruin a knife or a cast iron pan is a myth that too many people have bought into.
Maybe you got lucky or I got unlucky, but cast iron plus dishwasher equals having to reseason from scratch for me
That’s just adding a bit of oil and spreading it over the surface with a piece of paper, takes like 10 seconds. I have done that after washing it for 40 years and it works as well as anything I found people saying online.
Some insane people insist on sticking it in an oven with bacon grease or something but as far as I’m concerned it doesn’t do anything more than just adding a bit of oil and leaving it alone. I did that once and felt completely ridiculous for wasting so much time for the same result.
You can either do it slowly by just cooking with it over and over to get the layer of polymerized oil or you put on a thin layer and bake it on there to do it the fast way
Or do it the really fast way and just oil it with zero heat
You do that to keep a protective layer of oil on there.
But, yes, that would achieve the first part of my statement the next time you used it to cook.