The Final Tasting A workshop to promote interest by winemakers in creating sparkling wine by the traditional method was developed in 2020. Led by an experienced winemaker, it began with the picking of Chardonnay grapes at low sugar content. The following year the grapes were successfully fermented into a dry still white wine that formed …
This calaculator was created and forwarded to us by Bill Wyngaard of Sooke, BC. He advises that it is based on a 2010 version of MS Excel and now contains calculators for potassium sorbate additions, blending ratios, hydrometer corrections, acid calculations, malolactic calculations and more. Bill invites anyone to use the calculator if they wish …
Download spreadsheet calculator. here Open and use from computer download file This is a spreadsheet calculator with substantial functions: Zoom out to view all tabs. Use this spreadsheet to perform calculations for winemaking additions and fining trials, which are attached. While most of the calculations are believed to be correct, the calculator is provided without …
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 …
Accuracy in titratable acidity (TA) determination Read More »
These instructions are for a volume 19 Litres of base wine, but formulas at the end of this article will provide successful results with other volumes. Advance preparation before starting yeast culture Requirements for the base wine: The wine should fermented …
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 …
Pre-fermentation pH and Titratable Acidity Calculator Read More »
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 …
The most mysterious aspect of wine is the endless variety of flavours that stem from a complex system of interactions among many hundreds of compounds. In its widest sense, wine flavour refers to the overall impression of both aroma and taste components. Aroma is usually associated with odorous, volatile compounds from the grape varietals. The …
Yeast and its Importance to Wine Aroma and Flavour Read More »
Reductive odours during fermentation can damage a wine with otherwise good potential. For that reason frequent daily monitoring of fermenting juice or must for detection of off-odours is justified, particularly near the end of fermentation. Measures that can be taken when reductive odours are detected: A A simple method of eliminating a reductive odor is …
The following table has been updated from the work of Dr. Sandy Kirk, Colin Nicholson and Bill Pearson and is based on wine tasting. It provides rough targets to aim for when starting or finishing a wine. INDAC is calculated as titratable acidity of a wine or must minus the pH. (TA minus pH …
YIELD For acid adjustments calculate that 100 lbs of grapes yields at least 19 L GELATIN 10 mL per 100 L right after press for Ortega COLOR PRO / COLOR X The use of these enzymes is recommended for all reds. It helps keep the color from falling out …
The most mysterious aspect of wine is the endless variety of flavours that stem from a complex system of interactions among many hundreds of compounds. In its widest sense, wine flavour refers to the overall impression of both aroma and taste components. Aroma is usually associated with odorous, volatile compounds from the grape varietals. The …
Yeast and its Importance to Wine Aroma and Flavour Read More »