Sounds like I'm safe to re-use. Thanks guys.
I plan to rent the stem wall forms, so it's just dimensional lumber that I plan to re-use.
I'm really glad I rented the stem wall forms for my shed foundation pour.
I was planning on re-using the footing form board but that didn't happen. Word of advice, don't get lazy after the poor. Strip the footing boards when the footings have firmed up (a day or two or so). My time was so short working on my shed this summer I kept thinking "bah, I have more important things to do like setting up the wall forms, I can strip the footing boards later".
Errr, wrong.
Some of the concrete from the wall pour slopped over the side of the wall form, it didn't get cleaned up, so some of the footing boards on the exterior will become part of the back fill dirt in due time.
Bottom line, if you want to re use the footing board, pull them off and clean them up as soon as it's feasible. And try to scrap off any wet concrete you can while it's still wet.
Oh, and another tip: while the freshly poured footing is still wet, set the bottom form panel clips. I figured I could nail in the clips a day or two later while the concrete was still green. I did, it worked, but it was a bit harder.
And . . . tip 3: the more perfect, level, and smooth you get your footing, the more accurate will be the wall form. The tops of my footings were screened level but they weren't smoothed over with a steel trowel. I should have done this. Then set the form clips.
This was not smooth enough for my tastes. It would have made things a bit easier on wall framing if this footing was smoother because the rental panels would have had a more uniform top sitting on this. Each phase affects what happens down the line. The more you sweat the quality / details up front, the easier the next step will be.