Unlike molasses, evaporust doesn't taste good in cookies.
But it's reported as non-toxic.
Once I tried it the first time, I became a spokesperson.
My love for evaporust is just short of an addiction.
If you have something to big to dip, you can soak a rag in evaporust and achieve the same result, as long as you don't let it dry out. I've done a few engine blocks including the one in my current Opel GT where the engine was salvaged from a field where it had been sitting in a pile for (they said) about 10 years.