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Exposing wine grapes to sunlight was the key to making a good quality cabernet. But even the toughest grapes may not withstand the extreme heat that comes with climate change. Too much heat, like California has experienced with recent heat waves, can lead to jarringly jam-like wines that are high in alcohol and sugar and […]
Color is one of the key elements in the marketing of rosé wines. Their broad range of color is due to the presence of red pigments (i.e. anthocyanins and their derivatives) and yellow pigments, likely including polyphenol oxidation products. Clarifying agents are widely used in the winemaking industry to enhance wine stability and to modulate wine color […]
Simultaneous inoculation or co-inoculation, what is the best time to inoculate the yeasts? In this video Maret du Toit, researcher at the Institute for Wine BioTechnology in Stellenbosch, South Africa, explains the different aromatic profiles that can be obtained depending on the moment chosen to inoculate the yeasts, which will depend on the wine matrix […]
