by Mazer828:
I second the Cote des Blancs yeast for cysers. It's a match made in heaven. I'll share with you my easy cyser recipe and fermentation schedule, which has yet to fail, and produces some fine cyser in the 16.5% ABV range.
Start with 4 gallons of unfiltered, lightly pasteurized (if that's all you can find, otherwise unpasteurized, fresh-pressed) juice. I am blessed to live within an hour of Apple Hill, in El Dorado County, California, where numerous apple orchards exist, so getting fresh pressed juice is a cinch.
Pour them into a sanitized bucket, take a gravity reading, and then begin adding honey, using a sanitized paint stirrer attachment on a cordless drill, until you get to your desired OG. Mine is usually around 1.130. At the same time, mix in 5 tsp Fermaid-O.
Hydrate one packet of Cote des Blancs yeast using Go-Ferm, and 104 degree water, for 30 minutes. During this time, the temp will come down. Temperate by adding small amounts of the must to the hydration container at a time, and when the temp is the same as the must, pitch. Then I drain the whole thing into a 6.5 gallon glass carboy, drop an oxygenation stone in, and pump pure O2 in for about 30 seconds.
Fit an airlock, and wait. I try to keep the must temperature in the mid 60s throughout the ferment. When the lag phase is over, I stir in 2.5 tsp. Fermaid-O. When the SG gets to 1.075 (1/2 break), I degas and stir in another 2.5 tsp. Fermaid-O. Then I set it somewhere quiet and out of the way until I see the yeast drop out. At this point, I rack and begin testing for stability. When the SG stays the same for a couple of weeks in a row, I bottle (carbonated) using raw honey for the priming agent. I don't wait for full clarity because I like my ciders and cysers bottled like hefewiezens. You can pour them clear, or stir them up a little; however you like it.
If I'm going to add spice, I add it in large pieces (chunks, not powder) in a steeping bag, during secondary, until I get the flavor character I want. One of my next batches will involve using fresh ginger, which I will shred and add to the primary; probably 2-3 ounces.
Using this recipe/method I have yet to need to make any pH adjustments or acid additions.
Hope this helps you develop your own method, and make awesome cyser!