Forgive me if that sounds like a stupid question, but I have some shea butter that I bought less than six months ago and I use to use it all the time until about early October. Well I just opened it up and it looks really dried out a lot more grey looking then I've ever seen, and it smells like chalky-play doh or something. I can't describe the smell except for like that lol, but yeah...I was wondering the shelf life of shea butter. This is unrefined shea butter btw. I'm wondering if the space heater that I use in my room basically "killed" it.