If they appear shiny and crystalline, they are vanillin, an organic compound naturally developed on high quality vanilla beans. But if they are fluffy and cottony, they are molds and the beans can no longer be used.
If they appear shiny and crystalline, they are vanillin, an organic compound naturally developed on high quality vanilla beans. But if they are fluffy and cottony, they are molds and the beans can no longer be used.