Depends on the wine, or fruit used.
red wines use the whole grape, skin & all, it is what gives the red wine it's color.
It is aged with oak chips if not aged in oak barrels and the tannin in it is what protects it and helps it last, and you need to age it for at least a season, in my opinion, but to let it age properly for years mellows & developes a totally different taste.
White wines are crushed & skins removed....harder to produce in the home.
Whites are not aged in oak, and have no tannins and can so spoil easily by light & warmth.
Whites need to be drank within a year.
Fruit wines differ as to the fruit & if it is aged with oak chips or in oak barrels as said before.
dark fruits like plums can be pressed & fermented just as dark wine grapes, and aged the same way if one wanted to...or you could press out the juice & toss the skins and ferment it as white wine.
That is the fun of making wine, different yeasts also develope different flavors.
Much equipment is need, a brix tester & tube (to measure sugar) campa tabs, sulfite tabs, and so on...all properly measured & loved and bottled.
It is a wonderful hobby I highly recommend.
Nothing like going to a friend's for dinner & bringing several of your own wines with you for a fun wine tasting!