It happened to me too. I believe it's the mango butter. From what I have read, it is pretty similar to shea. It can get grainy if you don't handle it properly. To prevent your shea or mango from getting grainy, you need to cool your products fast. I usually refrigerate my lip balm or lotion bar container for 15 minutes before I fill it and I refrigerate them again once I am done. So far, that has worked for me. Here is the mms site if you would like to read more : http://www.thesage.com/catalog/FixedOil.html Scroll to the middle of the page, right under the Shea butter. HTH Celly