Looking at the vines sporting some black rot and devastated by Japanese beetles, there didn't seem to be all that much there to work with. But by the time I was done harvesting every last bunch, I had a bushel basket full of grapes, which once stripped from their stems and hand selected, yielded more than 16 pounds of grapes. That's about as specific as I can be because my scale maxes out at 16 lbs. and I didn't jump on the bathroom scale to approximate any closer.
Because both varieties of grape that I used were seedless, I opted not to skin them as so many recipes call for. Instead, I put the whole grapes into my Vitamix and whirred them into a fine pulp, reserving, I hope, so much of the nutrition found in those grape skins. I skimmed much foam off the surface of the boiling liquid, but I didn't let it stand over night to remove any crystals, nor did I strain the liquid; so, we'll see if that affects the product at all. I also choose not to use pectin recipes, so this particular jelly may be a bit thin, but that seems to be the way everyone here prefers it. All told, I made 28 half pint jars of grape jelly. Not bad for a few two year old vines! We may have enough jams/ jellies to get through the winter after all...then again, probably not the way we go through it.