You have to be kidding me! I spent $40 buying two canning books from Amazon. A good description was not given, and the cover of the book showed jars.
99% of that book is using those sealing bags!! I understand what they are, but I have yet to see them sold anywhere. It also sounds expensive to start it up. If I understand correctly, you need a special sealer. Correct?
Regardless, my book is unused, and the other one was rejected by the person I bought it for.