I am cleaning up a McClary 9 Griddle for a friend. I pulled it out of the lye bath and and then put it in the vinegar/water solution for a few hours. I attach pictures of how they looked after the lye and after the vinegar. As you can see, there is a large circle of rust on the bottom the the griddle, more pronounced than before the vinegar dip. Can someone remind me, would it be safe for me to put this griddle in the vinegar solution overnight, or should I wait till tomorrow and put it in when I can monitor it better?
Also, I finally got the Griswold griddle out of the lye that I posted about before and attach pictures of those out of the lye. It has odd blackening around the outer bottom. I used lye and stripper, so it must just be some staining or dark marking from use.