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Petiole Testing Time

Nov 2017

The best time of year to collect grape vine Petioles for analysis is now (full flowering, 80% cap-fall). Petiole testing can provide a snapshot of the nutrient status of the vine.  Obtaining quantitative information on nutrient levels can assist in determining the effectiveness of fertiliser applications and also help you…

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Brettanomyces creeping up on you?

Nov 2017

It’s that time of year again when this yeast can rear its ugly head. Brettanomyces can produce the volatile phenols 4-ethyl phenol (4EP) and 4-ethyl guaiacol (4EG), which are responsible for sweaty, horsey or medicinal off-flavours in wine. 

Right now red wines should have completed primary fermentation and have…

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