CL23 Vintner's Harvest
Species : Wine
Fermentation Temp Range (°F) : 46-75
Apparent Attenuation Range (%) : n/a
Flocculation : High
Alcohol Tolerance : 18%
Pitching/Fermentation : Vintner's Harvest Yeast - CL23 Ideal for crisp, fresh dry white, blush, and sparkling wines. Also the best strain in the Vintner's Harvest range for alcohol tolerance, able to ferment to 18% abv. CL23 is a particularly neutral/clean fermenter – it produces very low levels of fusel oils and other congener compounds during fermentation and so does not contribute much to wine flavor or aroma. However it does contribute significantly to structure and ferments out sugars completely, allowing for the driest of wines to be made. CL23 is noted for its robustness, able to tolerate high levels of alcohol and free SO2, and withstand wide ranges of temperature and pH. A reliable fermenter for high alcohol wines or at low temperature fermentations down to 8C (46F).
Notes : This strain is ‘fermentation friendly’ in that it produces no foam, starts fermenting rapidly, and can be used to restart stuck fermentations. In certain situations, CL23 can be used for red winemaking (especially where structure and dryness are key factors) but a word of caution: CL23 will take out color and fruit flavor so recipes should be adjusted accordingly. To appreciate such attributes, split a Cabernet Sauvignon Must and ferment out using CL23 versus VR21 – you will not believe both wines came from the same grape.
Best Styles : Blush, Dry, Dry Whites, Sparkling Cuvée, 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 : White Labs 720
Dry Yeast Substitution : n/a