We don’t have things that we intentionally leave be and unused.
We use them until they need to be replaced.
But how can we tell? They may show signs of wear and tear or they may not.
If they don’t, then how do we know?
If something is not working, then it is obvious that it should be replaced.
Someone made a comment about my pan when I was experimenting with baking cookies.
These pans are not the easiest to find but I got some.
They are replaced and it is something that you can tell.
But even if you can’t see, why not replace something before it does?