As for the choice of apples to use, bear in mind that if you want to have a little sharpness in your dessert, you should opt for green apples, or Granny Smiths; but if you want a sweeter jelly, choose sweeter apples such as the common yellow apple.

Grape juice can be made with a simple extractor that crushes the grapes and extracts the juice that can then be pasteurized and stored.