Using white grapes

Hello,
I may have an opportunity to get some fresh grapes from a co-worker when they become ready for harvesting. She offered them to me when she found out about my efforts to make crabapple wine. I don't have much information about them other than they are not palitable to eat. I'm not sure what type they are. Is the type of grape important before trying to make a wine from them or would the process be somewhat the same. I barely remember my dad making wine from wild grapes, so I assume that these would be usable as well. Any advice?

Lilrob, I also don't think it matters what species they are and need only adjusting sugar levels (as far as I know)

More info is needed about the grapes. Wild grapes often need to be watered down due to the high acid content and then adjusted for sugar, but this is entirely dependent on what you are working with. If you have an acid test kit it will be easier for you, otherwise I suggest when you get them get the must soaking with some pectic enzyme and a campden tablet or 1/8 teaspoon per gallon of must of sulfite and let it sit overnight, then take a sample to your local brewshop and ask them to test the acid level for you and advise you on adjustment. If you need a formula for it let me know. This is kinda complicated so you might want to work directly with a homebrew shop, but if we know what kind of grapes you have it would help us to help you.

That is what I thought also. I need to buy an acid kit and learn how to use it. It seems a little complicated when you read the instructions. Seeing something done always works better for me. I am going to speak with her this week and see if I can find out a little more info about them. I think she planted them intending to eat them, but after tasting them decided never mind. I don't even know how many she has, so it may not even be worth the effort. I now have so many crabapples that I wouldn't mind doing another batch of them. I will need to buy another carboy though. I thought about freezing them for awhile until my fermenter is free. I hate wasting all the fruit I see falling from my tree. It is now or never though because the fruit is starting to become over ripe.