Sanitize all equipment before beginning with one step brewing sanitizer.
Juice the cherries (see note) and then dissolve the sugar in about 3 quarts of juice. Stir until completely dissolved (heating is usually not necessary).
Add the remaining winemaking additives, including acid, tannin and yeast nutrient. Place the mixture into a one-gallon fermentation vessel (narrow neck carboy).
Dissolve the wine yeast in a small amount of water and allow it to bloom for about 10 minutes. Add the yeast mixture to the carboy.
Add water (or more cherry juice) to fill.
Cap with a water lock and allow the mixture to ferment for 1-2 weeks in primary until vigorous fermentation has slowed. If the mixture bubbles up into the water lock, remove it, clean it out and re-apply.
Rack the cherry wine into a clean carboy, leaving the sediment behind. Re-cap with a water lock and allow the mixture to ferment for another 4 to 6 weeks (or longer).
Bottle the cherry wine in wine bottles and bottle age for at least a month (or longer) before opening.
Notes
Juicing Cherries ~ The cherries can be juiced in a number of ways. Left unpitted, they can:
go through a steam juicer (about 90 min)
be frozen then thawed (a few days start to finish)
be gently mashed with sugar to extract their juices into a sugar syrup, being careful not to damage the pits (about 24 to 48 hours)
If pitted, the cherries can be added directly into a brewing bucket with the other ingredients and left to ferment in a primary. Don't use a narrow neck fermenter for this, it will clog. Open ferment for about 5-7 days with a brewing bucket before straining out the cherries and proceeding with the ferment.If using just the juice, you may begin with a narrow neck fermenter.Sweet v. Sour Cherries ~ Black cherries have a more concentrated flavor and I'd suggest using 5-6 lbs of black cherries (weighed whole) for a gallon of cherry wine. Sour cherries contain much more water, and I'd use 6-8 lbs.Similarly, add a 1/2 pound more sugar for sour cherries. Sour cherries are considerably more acidic, and you can skip the acid blend all together, or add much less.Wine Yeast ~ There are lots of options, and most any wine yeast will work. Good choices are:Lavin B71 Wine Yeast Montrachet yeast (Red Star Premier Classique) Premier Blanc (Champagne Yeast)Fruit Weights ~ If buying fruit at the farmer's market, a quart box of cherries weighs about 1.5lbs.