I have not done any canning for 30+ years, and have no intention of starting now. I also don't have any thing to can.Yard sales, 50 cents each, and inspect very carefully for cracks. Usually not worth it, too time sucking to inspect boxes of dirty jars.
But I do read a lot,,,,,,,,,,,,, and supposedly the older jars were of better quality, than the NEW ONES CURRENTLY SELLING.
I container grow many flowers. Few eatable items,,,,, 1, pot of cucumbers. 7 pots of tomatoes, (mostly cherry tomatoes for salads) and 7 containers of Sorrel. Pick the sorrel, and freeze in plastic baggies, portion size, Use for soups, and add to meatloaf type of cooking as well.
The Amish sell their veggies grown on Horse Apples, and Cow Pies.but--fish poo veggies?? Not too sure about that.
If you ever swam in a lake or river,,,,,,, I'm sure you swallowed microscopic fish stools.,,,,, Protein equivalent.,, Just think of the assortment of minerals as well.