Metals Change The Colour Of Wine.  Add/Read Comments

For those interested in the techi aspects of wine production - a University of Navarra research team have studied the influence of metals in giving wine its colour. The work concluded that a slight change in these elements substantially modifies certain aspects of the quality of the ferments.

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"Scientists know that color is one of the main parameters that enable the excellence of the product to be measured, providing as it does information about structure, body and taste. In fact, it is known that the hues, varying from bluish red to an earthy orange, are influenced by -amongst other factors � the stability and reactivity of metals present, such as iron, zinc, copper and manganese."