I have an elk cape I had tanned in 2007. The cape is still soft, pliable and the hair is in great condition. A friend noticed the hide was yellowing and advised it was the oils working their way to the surface. He suggested soaking it in water and freezing it. I don't have the freezer space, but can find some space at a friends house. Question is, will it ruin this cape to leave it out without freezing it. Short of soaking and freezing, are there any leather treatments/products or suggestions to prevent future damage. I do intend to use it for a mount when I get some more wall space one of these years.