They are small, but mighty! Wild grapes look a lot like your regular Concord grapes, but they are much smaller. Their seeds are still large and there is very little flesh to the fruit. All their flavor is contained in the skins. They have a deep, wine-like flavor.
Here is a cluster beside a few store-bought seedless red grapes for size comparison.
Once I got them all plucked, I was surprised how many grapes I actually had. They filled my 8 quart stockpot about 1/3 of the way full.
I prepared the juice as outlined in the Ball Blue Book, adding just enough distilled water to cover them by about half an inch. This was brought to a boil and simmered gently for an hour or so, until the fruit was well-cooked and soft.
I allowed that to cool enough to handle, then poured it into about 8 layers of cheesecloth. I like to tie the bag from the handle of a cabinet and let it drip overnight.
Now this is something the Ball Blue Book will not tell you and I learned from my mother-in-law. You must allow the juice to passively drip from the bag. Do not squeeze it! If you do, you will cause your juice to become cloudy. You can put the pulp back into the pot with a little more water and repeat the process to get some more juice out of it if you want.
Isn't that a pretty color?
Now, yet another thing the Ball Blue Book will not tell you: for the clearest possible juice, you should let the pitcher of juice sit undisturbed in the refrigerator for 24 hours or so. This allows the tartaric acid crystals to settle out and they will form on the bottom and sides of your pitcher. Do not stir or disturb at all. When you gently pour out the juice, they will stay behind in the pitcher. Tartaric acid is very sour. This is the same compound from which cream of tartar is derived.
I made my jelly following the Ball Blue Book recipe. The first batch I did was with pectin. It made a gorgeous, burgundy colored jelly.
I had enough juice left over to do a half batch of grape jelly without pectin (also in the BBB.) It came out very nicely too. I think next time though, I will dilute the juice by one-fourth. The no-pectin recipe had a stronger, purer, wild grape flavor as a result of being boiled down.
The flavor of this jelly is so much more complex than that of regular grape jelly. I like that it has a little extra punch of tartness. It has a deeper flavor and I've thought hard about how to describe it. I would say it has a lambrusco grape/tart red cherry flavor.
I ended up with 5 pints and was very pleased with the results for my effort!