Hello, I live in wisconsin, and last year I purchased two different kinds of grapes,
Fredonia and frontenac. Are these kinds of grapes high enough quality to produce a nice wine?
Don't know about Fredonia but Frontenac can make a very nice red wine. It tends to be a bit high in acid so you may need to blend in some years but here in the Hudson Valley it's pretty vigorous and easy to work with.