I just toss my enameled cast iron in my dishwasher every day, and deal with it being poorly seasoned by seasoning on the fly every time I cook on it. Scrubbing by hand isn’t that much work, but it’s still more than ten times the effort of just throwing it in the machine…
Does enameled cast iron need seasoning? I thought the enamel took care of that.
As far as I know, seasoning a cast iron (non-enameled) pan is to create a “non-stick” coating. But since the iron is still exposed, putting it in the dishwasher would make it rust.
Enameled cookware doesn’t fear water in the same way, so what you’re doing is probably fine, but I wouldn’t recommend for simple cast iron
It benefits from good seasoning yeah, for greater non-stickness. In both cases, the dishwasher gets in the way of longstanding seasoning. But I think it makes sense that the enamel works as a “baseline” seasoning, so even without seasoning at all it’s still passable - which is why I bought one in the first place, to worry less about maintenance.