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CY17 Vintners Wine Yeast

CY17 Vintners Wine Yeast

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Item Number:29-2768
CY17 Vintner's Harvest

CY17

Species : Wine
Fermentation Temp Range (°F) : 72-78
Apparent Attenuation Range (%) : n/a
Flocculation : Medium
Alcohol Tolerance : 15%

Pitching/Fermentation : Perfect for sweet white/blush and dessert wines made from grapes and particularly from country fruits & flowers. CY17 produces high levels of desirable congeners during fermentation including aromatic thiols, imparting rich fruity aromatics, full body and ‘tropical’ flavor characteristics. CY17 is also noted for high glycerol formation, further enhancing sweetness. This is a slow fermenter compared to all other strains in the Vintner’s Harvest range, typically taking up to 21 days to ferment table wines and up to 35 days for dessert wines. CY17 prefers a constant temperature in the 22 – 26C (72 -78F) range. Dropping the temperature below 15C (59F) two-thirds of the way through fermentation will arrest fermentation making CY17 suitable for producing naturally sweet wines (both potassium sorbate and metabisulfite must be used to prevent re-fermentation).

Notes : CY17 is also excellent for sweet sparkling wines, but CL23 must be employed for the bottle fermentation stage. CY17 is a delicate strain that must be treated with some respect - avoid free SO2 levels above 50 ppm and ensure pH above 3.2 . Pay particular attention to sterile winemaking conditions and a warm start to fermentation otherwise risk of bacterial contamination is increased. CY17 will happily ferment up to 15% abv in optimal conditions.

Best Styles : Blush, Fruit Wine, Fruity Whites, Whites

Looking for a Liquid or Dry Yeast Substitution? The brewers at Austin Homebrew Supply have tried most of them. The following are some suggestions that have worked for us.
Liquid Yeast Substitution : n/a
Dry Yeast Substitution : Vintner's Harvest MA33, Lalvin D-47

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