As a Senior Citizen I get more fruit juices from Government Surplus than I can possibly drink. I found a simple way to use this juice to make a very tasty wine that is very simple and easy to make.
I use an empty, plastic 2 litre soda bottle. Wash the soda bottle so there is no soda residue left in it.
Add two quarts of Grape juice, and one cup of regular granulated sugar. Make sure the sugar is completely dissolved in the juice.
I buy Brewers Yeast at the health food store as it works best and does not cloud the wine, plus it seems to ferment faster than Bakers Yeast. Brewers Yeast is highly concentrated so a little goes a long way.
After mixing 1/8 th teaspoon of the Brewers Yeast into the Grape juice, I put a large ten cent balloon over the bottle opening and fasten it tightly with a heavy duty rubber band.
Put this mixture in a warm, dry spot in your kitchen where you can keep an eye on it. If it gets too warm the fermentation can be extreme. If the mixture is too cold it will take forever to ferment.
After a week of fermentation, most of the cup of sugar is used up by the yeast and the alcohol content is only about 12%. By adding a half cup more sugar at this time, fermentation will continue. Once the alcohol content has reached about 17%, fermentation will cease. Put the wine in the refrigerator for several more days and it will clarify as the sedimentation will settle to the bottom of the bottle.
I have found that after several weeks I can pour the clarified wine very slowly into a glass bottle, chill, and serve.
Some tips to remember is the wine will have a lot of pressure inside the bottle or container you brew it in, the balloon allows expansion of the gases so the container does not burst.
The more sugar you add the sweeter will be your wine and a higher alchole content is the result.
With Brewers Yeast you only need use 1/8 teaspoon for a 2-litre bottle of wine and several cups of sugar.
I have found this technique to make a delicious and inexpensive wine from things you probably already have around the house. This wine will only keep for several weeks in the refrigerator if left opened. Capped and sealed the wind should last indefinitely.