A chilled glass of Pinot Grigio or Chardonnay may look white, but has more in common with red wine than you might imagine.
Scientists have discovered that white grapes contain the same pigments that give red wine its colour, suggesting that �white� wine may not really exist.
The presence of the pigments, called anthocyanins could explain why producers of white wine using white grapes are sometimes surprised to see a pinkish tinge in bottles.
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