Grape Juice and Apple Cider

I made all my grapes into juice and the West Newbury Congregational Church is now using my juice for communion. One batch bgurned a tiny bit so I decided to call that "smokey grape juice" and I'm not sharing that with other people. My homemade juice is not so sweet as commercial grape juice. Now, I am on to making apple cider which I freeze rather than can. When I have heated it enough to successfully can it, that ruins the flavor and it tastes like apple juice instead of apple cider. I have read that it is best to use at least three kinds of apples for cider so that is what I do and I have found that it is best to use more tart apples instead of sweeter ones. I'm planning to make dider again this weekend with wild apples which seem to make the very best cider.