Closure-derived oxygen and OTR

Closure-derived oxygen and OTR

A research summary Dr. Carien Coetzee Basic Wine 20 August 2019 In a previous blog post, we reported on a study where researchers investigated the effect of copper and glutathione addition, prior to bottling, on the evolution of key aroma compounds such as 3MH (fruity...
Should we be afraid of pinking?

Should we be afraid of pinking?

Dr. Carien Coetzee 23 April 2019 During one of the sessions at the Concours Mondial du Sauvignon in March this year, we tasted a brilliantly clear wine which had the slightest pink hue. After confirming that there were no blending components to this Sauvignon Blanc...
Stability of Sauvignon blanc aroma after fermentation

Stability of Sauvignon blanc aroma after fermentation

Dr. Carien Coetzee 27 February 2019 With most Sauvignon blanc ferments coming to an end, it is important to already start thinking of preservation techniques. Great care was taken during harvest and strategic winemaking techniques were employed for the optimal...