..... A lot closer to PC too.
I don't know about that. The main ingredient of oven clean is lye, which has long been known as a treatment for cherry....not a stain, but like Aqua Regina and maple, a conversion process. Whether you make from wood ash or spray it on from a can, it's the same stuff.
Too me it's much akin to using ferric nitrate crystals in water or alcohol vs. mixing up a home brew of iron dissolved in nitric acid and water.
If anything, oven cleaner and FN crystals may be construed as cheating, but they are the same chemically and produce the same results, as I understand it. Enjoy, J.D.