Selection: Good-quality Granny Smith apples will be firm with smooth and clean skin. Granny Smith apples are a deep green with an occasional pink blush of the cheeks. Test the firmness of the apple by holding it in the palm of your hand. (Do not push with your thumb). It should feel solid and heavy, not soft and light. These apples may be less attractive, but the flesh is still good to eat after cutting.

Avoid product with soft or dark spots. Also if the apple skin wrinkles when you rub your thumb across it, the apple has probably been in cold storage too long or has not been kept cool. Grannies occasionally show "russetting," a brownish network at the stem end.