I cannot answer that question definitely. I would not think it to. But, do some looking on-line as to if navel jelly had any effects on lead or tin. That should tell you.
But... Like I said, these areas should not be just stripped and then blued. They need to be polished still. The looks of bluing is dependent mostly on the polishing and prep. If chemically stripped areas are not then polished out, the bluing will look different in those spots.
Another thing to note is that if they are very minor spots in the deepest cracks, you may be able to leave them be. Since it is already rust blued, they will likely blend in with the new rust blue when all is said and done.
A good example is the matting lines and lettering on the ribs. When polishing the high spots on the ribs, and then blending with a stainless wire wheel, there is no way to get the matting lines and lettering stripped. But when they are reblued, everything blends together fine.
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B. Dudley
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