How do Sparkling Rosés, such as those from Champagne, often acquire their color?

Answer

From a small amount of red wine added before the second fermentation

In Champagne production, Rosé sparkling wines frequently gain their color when a small proportion of red wine is introduced just before the second fermentation initiates the creation of bubbles.

How do Sparkling Rosés, such as those from Champagne, often acquire their color?
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