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The Mumm Sparkling Brut Prestige (2025) is a wine I found on sale, selling for $8.99. GH Mumm has been a French Champagne House since 1827 and has had a California outpost since the 1970s. The Story Mumm has been in Napa and Sonoma for 50 years. Their Estate vineyard is located in Carneros, where...
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