What you are seeing on the dark chocolate chunks found in some of our mixes is called bloom. Chocolate blooming is common in chocolate made without preservatives. Over time, the cocoa butter inside the chocolate softens and separates from the rest of the ingredients, rises to the surface and settles leaving the chocolate with a whitish appearance. Sugar bloom can result from exposure to cool temperatures following warm temperatures. Premature fat bloom can occur when our dark chocolate chunks are in mixes with other ingredients containing oil and salt, such as our roasted and salted nuts and/or dried fruit. While it is not very visually appealing, chocolate that has bloomed is perfectly fine to eat!