Those old books are great but I would agree. I won’t can anything with flour. I can thicken things up when I use it. One thing and I don’t know why is the canning of squash. I have canned it for many years and have noticed that in the last few ball canning books squash is no longer in them with the instructions for canning them. I have an older ball canning book with the instructions for canning it and I will continue to do so. Just don’t know why that one was removed from the newer books.
