w Brew Butler - Yeast laboratories

All Strains from Vintner's Harvest

AW4 By Vintner's Harvest White Wines
One reader described it as imparting a banana flavor but that could be bad brewing. Low flocculation. Others described the yeast as fast acting for wine at least, mentioning it preserved the flavor.
Form Dry
Strain AW4
Temp 68F to 68F
Attenuation 45 to 0
Flocculation Medium
Substitutes None
Tolerance 14.50
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BV7 By Vintner's Harvest White Wines, Dry Wines, Ciders
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.
Form Dry
Strain BV7
Temp 59F to 59F
Attenuation 45 to 0
Flocculation Medium
Substitutes None
Tolerance 13%
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CR51 By Vintner's Harvest Red Wines
Ideal light, fruity, and ideal for early consumption. CR51 will enhance ripe berry fruit flavours in light and fruity red wines and introduce a velvet texture perfect for Valpolicella and especially for Beaujolais style wines. This strain has an almost unique ability to confer a smooth even ?silky? quality to the wine, perfect for early consumption young reds. CR51 is a medium rate fermenter with optimal temperature between 22 to 30oC (72 -86oF) which will ferment to 13.5% abv. ethanol. Low to medium foaming strain with low volatile acid and SO2 production.
Form Dry
Strain CR51
Temp 72F to 72F
Attenuation 45 to 0
Flocculation Medium
Substitutes None
Tolerance 13.50
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CY17 By Vintner's Harvest White Wines
Ideal for sweet ciders with fruits and flowery type additions (like wildflower honey)
Form Dry
Strain CY17
Temp 72F to 72F
Attenuation 45 to 0
Flocculation Medium
Substitutes None
Tolerance 15%
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MA33 By Vintner's Harvest White Wines
Acid reducing so becareful with acid content, leaves many residual sugars so excellent for sweet cider perhaps.
Form Dry
Strain MA33
Temp 64F to 64F
Attenuation 45 to 0
Flocculation Medium
Substitutes None
Tolerance 14%
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