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Making Chardonnay

Nanaimo Winemakers and Saanich Sommeliers Chardonnay Workshop Notes presented by Colin Nicholson and Don Graham  A well stocked wine store usually has a good selection of Chardonnay wine reflecting the popularity of that wine with consumers. The Chardonnay grape is cultivated throughout the world’s wine growing regions and the characteristics or styles of the wine made …

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Accuracy in titratable acidity (TA) determination

How does one obtain accurate results when analyzing grape juice or must for titratable acidity (TA) when the concentration of a sodium hydroxide titration solution is suspect due to extended storage? This article and the related laboratory  article “Preparation preparation and calibration of  sodium hydroxide  solutions”  describe how to prepare and/or  simply and quickly  calibrate …

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Pre-fermentation pH and Titratable Acidity Calculator

Two juice and must  pH/TA spreadsheet calculators in Excel and ODS  versions that allow you to adjust juice or must wine to a target pH prior to fermentation. To make use of this spreadsheet calculator please download it and save it on your computer.  Aside from IPad where there is no external keyboard the calculator …

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How to make and standardize sodium hydroxide solutions for determination of titratable acidity in winemaking

Sodium hydroxide is only about 97% pure and it forms sodium carbonate and bicarbonate by reaction with moist air as it ages (there are ways to make it up removing these impurities but it is not worth the bother for winemakers).  Moreover it comes in the form of pellets so that it is almost impossible …

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