What is the residual sugar in Prosecco?
                                
                                
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                                    3 min read                                
                            
                                The amount of residual sugar (RS), or leftover grape sugars after fermentation, determines a wine's sweetness. In Prosecco, this is a key factor in defining the wine's character. Understanding terms like 'Brut' and 'Extra Dry' is important for selecting the right bottle.