Graininess in Blue Opal can occur with temperature fluctuations (sometimes this happens in transit). This graininess is a normal characteristic of the kokum butter in this balm. Kokum butter is made up of several fatty acids with differing melting points. When heated, all these fatty acids eventually melt together into a uniform texture, however if the melted shea cools down too slowly these fatty acids start to solidify and crystallize at different speeds which can result in a grainy texture.

Your balm is still just as potent even in a semi-solid grainy state. You can certainly use the balm with a grainy texture - they will melt into you skin as they warm upon touch. Or, you can easily return it back to a smooth solid state with the above mentioned method.