I would like to learn how to make wine at home. Anya dvice? What do I need to buy (besides the grape juice)?
Ana, what you are asking is akin to saying, "I want to be a French chef -- any advice?" In other words, the topic is SO BROAD, and there is SO MUCH to learn and do, that it becomes an almost impossible question to answer.
Where do you live? What kind of wine do you want to make? How much room to you have? What sort of volumes are you talking about? Do you have any background in chemistry and/or micro-biology? (An advantage, but not a necessity by any means.)
and so on and so on and so on . . . .
a) You may want to first check out some home winemaking websites. One good example is http://winemaking.jackkeller.net/
b) You may want to check out the Yellow Pages and visit a home winemaking supply store in your area.
c) You may want to search the net for home winemaking and home winemaking discussion groups.
etc., etc., etc.
A good starting point would be the Usenet news group, rec.crafts.winemaking. That news group is all about what you are asking. As Jason points out, it is a very broad subject. Do not be intimidated though. There are several home-winemakers, who post to this board, and maybe many of them can start you in the correct direction.
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If I might add to this post again, Ana another idea is making mead for the most part you can probably use the kitchen equipment you already have except for the hydrometer which will be about 20-30 bucks at your homebrewer supply shop. Beucoups recipes on the net, just google mead recipes. Find a neighbor who has a fruit tree, ask to have some of the fruit and share the mead with your new friend. Right now I am fermenting a blueberry vanilla mead with a little clove in it.