Fresh Concord Grape Juice

I saw a sign at the Farmers' Market next to these grapes that said they had a "foxy" flavor. It made me laugh, and I figured I should give them a try. I've never eaten this type of grape whole before. They're really good! They have really hard seeds in them though, so be careful! The inside of the grapes is green, and is the texture of jelly. Dino suggested that we juice these grapes, so we did, and we ended up with a very intense grape juice. I ended up thinning it out with a little water so it would be a little more mellow.