Metal in wine contributes to color
An interesting article on Decanter this morning describing the effects of trace amounts of iron, copper, and various other metals found naturally in grapes. Different levels of these metals can change the color of wine. The research was done ‘using Tempranillo samples grown by the vinicultural department at the University of Navarra in northern Spain’. The research by the scientists could prove to be useful in predicting the quality of a wine, before it’s even off the vine.
The team worked out a mathematical formula to allow growers and producers to quantify and predict colour and shading precisely. This could be used as an objective index of quality.
Read [Decanter.com]
