Wyeast 4766 takes a genuinely different approach to cider than the Lalvin wine strains commonly used for the same purpose — rather than a wine yeast adapted to fermenting apple juice, it's developed and marketed specifically as a cider yeast, and its flavour output reflects that: more ale-like ester character than the cleaner, more neutral profile K1V-1116 or EC-1118 typically produce in the same juice.
Why the yeast choice changes cider more than beer
Cider's flavour comes almost entirely from the apple juice itself plus whatever the yeast contributes — there's no malt bill or hop schedule providing additional layers the way there is in beer, so the yeast's own character has proportionally more influence on the finished drink's identity than it does in most beer styles. Choosing 4766 over a neutral wine yeast is a genuinely bigger flavour decision in cider than the equivalent choice would be in a beer recipe with a strong malt-and-hop identity of its own.
A solidly dry cider, by the numbers
4766's 85-95% attenuation range, run against a 1.055 juice at the 90% midpoint, finishes near 1.0055 — about 6.5% ABV by the simple formula, a genuinely dry result typical of cider fermented all the way to completion rather than stopped early. The ABV and attenuation calculator confirms what a specific batch's own measured gravities actually add up to.
Temperature range
Across its 60-75°F range, 4766 sits at genuinely ale-adjacent temperatures rather than the wider, sometimes cooler-tolerant range wine yeasts like K1V-1116 handle — consistent with its overall ale-yeast-inspired character and approach.
Flocculation
Low-medium flocculation gives 4766 somewhat better clearing behaviour than the lowest-flocculation wine strains, though a traditionally made cider still typically benefits from extended cold-conditioning or racking off the yeast a few times before it's genuinely bright.
Pitching considerations
As a liquid strain, 4766 needs the same viability discipline any Wyeast product requires — checking the smack pack's manufacture date, sizing a starter appropriately for its actual age, and pitching promptly rather than letting the pack sit unrefrigerated for an extended period before use. A neglected, warm pack loses viable cells faster than a properly refrigerated one, the same general rule that applies across every liquid strain covered on this site regardless of the specific beverage it's intended for.
Where it's used, and the choice it represents
Traditional cider and perry (pear cider) are 4766's clearest homes, chosen specifically by cider makers wanting a fuller, more characterful fermentation profile than the cleaner wine-yeast approach delivers — a real stylistic fork in the road for anyone starting a cider recipe, since 4766 and a neutral wine strain will produce two genuinely different drinks from identical juice.
Worth a side-by-side trial
A cider maker unsure which direction to take is well served splitting a single batch of juice into two smaller fermentations, one with 4766 and one with a neutral wine strain like K1V-1116, rather than guessing from descriptions alone — the difference between an ale-derived and a wine-derived cider yeast is large enough in practice that most makers develop a clear, lasting preference within just a single side-by-side comparative trial of the two.