The shea I got is completely unrefined. I really love the texture and smell. However, there are some impurities that need to be strained out. My plan is to slowly heat to liquid and strain thru a mesh strainer. Are there any "rules" I should know for heating the shea, ie, too low, too high, simmer, or anything like that? Do I need some sort of special strainer? It is currently a beautiful bright yellow. Will heating it take away the color? Thanx for the input.