I buy beautiful organic apples, but sometimes I see a variety such as Granny Smith that has a powdery dust in the bowl of the apple. What is this?
The powdery dust is actually Kaolin clay, an effective product that reduces sunburn on apples, especially the Granny Smith variety. It can leave a subtle deposit in stem bowls of the apples where the brushes did not reach during the cleaning process. Kaolin clay is natural clay that is used in foods as an anti-caking agent. It is harmless and safe to consume.