Baldwin, Golden Delicious, Granny Smith, McIntosh and Red Delicious are different types of apples that are grown in the United States. While all apples are edible on their own, some are particularly well-suited for use in cooking.
Baldwin apples have a mostly red skin with areas and streaks of yellow, are grown in the New York area, and are available from October to April. Baldwin apples are mildly sweet and tart, and have a crisp texture. Golden Delicious apples have yellow skin that may appear slightly green, and are available from September through June. People can cook with Golden Delicious apples, but they do lose some flavor during the cooking process.
Granny Smith apples are green and tart, and are good for eating or cooking. Granny Smith's are generally grown in California and Arizona, as well as in New Zealand and Australia. They are available all year. McIntosh apples are bright red with some green, and are crisp and tart-sweet. They are available from September to March, and are good for eating, but do not stand up to lengthy cooking. Red Delicious apples are juicy and sweet, and while they are good for eating, they do not work well in recipes that require cooking.