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for Higher Alcohol content A Specially formulated recipe containing Bentonite, Wine Yeast, Yeast Nutrient, Vitamins and Minerals. Used or making high quality wines, speedy fermentation and clearing.
6 in stock
Saccharomyces Cerevisiae – The ‘only strain’ for Germanic aromatic white wines.
AW4 is noted for developing powerfully fragrant, full spice aromatic wines and is a perfect match for Gewurztraminer and also recommended for Sauvignon and Semillon where the Oenologist requires a positive aromatic esters contribution from the yeast.
AW4 is a good fermenter across the range 14 to 30ºC (57 -86ºF), low foam formation and medium to high glycerol. It will ferment up to 14.5% abv. ethanol providing the temperature is held within the 20 – 25ºC (68 -77ºF) range and the pH is above 3.0
Young’s All Purpose Red Wine Yeast is a fantastic, multitalented strain that is capable of working with and enhancing each varietals distinctive character. This steady, stable fermenter will deliver a soft yet well structured red wine. You can expect consistently high results when using this yeast, exceptional when producing fruity reds. Whilst only imposing subtle aroma and flavour compounds on to your wine, the results will show full expression of the grape’s
individual character. Anticipate medium to full bodied wines with good length of palate and a long finish, with the ability to ferment up to 15% ABV, this is a good all rounder when you are unsure which strain to use.
Technical Information
Alcohol tolerance: 15% v/v
Glycerol production: 5g/L
Foaming: Medium/High
Low production of volatile acids
Low production of SO
Viability: >1.0 x 10 CFU/g
Rehydration
During yeast manufacture, special processs are employed to promote very high leveles of the natural compound – Trehalose within the yeast.
Trehalose is a natural sugar produced within the yeast cells to protect itself during prolonged storage and stress conditions.
The very high levels of trehalose acheieved also remove the need for re-hydration before adding to must or wort – there is now no advantage in doing this even for high alcohol wines.
Saccharomyces Cerevisiae – Ideal for full bodied, full flavoured dry and sweet white wines.
BV7 will both preserve and enhance the grape variety and terroir, promoting excellent flavour complexity, good wine structure and balance but especially full aromatic flavour. To appreciate the impact of BV7, split a chardonnay must, fermenting half with CL23 and the remainder with BV7 – you will be amazed at the impact of the yeast strain upon fruit concentration.
BV7 produces a wide range of low level beneficial congeners such as higher alcohols and esters and high glycerol promoting full body and structure to the wine and contributing significantly to mouth-feel, wine texture and palate intensity.
Avoid fermenting above 13% abv. ethanol, BV7 is not particularly ethanol tolerant. Acceptable temperature range is 15 to 30ºC (59 -86ºF) but ferment below 22ºC (72ºF) for maximum flavour development.
Diammonium Phosphate, powder for use in winemaking. This is the basic nitrogen source in nearly all wine yeast nutrients. It can be used by itself or to augment some of the more expensive complete nutrients. At certain stages of fermentation it will help inhibit formation of reduced sulfur compounds.
