How many glasses of wine are in a black box?
                                
                                
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                                    3 min read                                
                            
                                According to Black Box Wines, their most common 3-liter box contains the equivalent of four standard 750ml bottles. This means that a standard 3L black box contains roughly 20 glasses of wine, assuming a standard 5-ounce (150 ml) pour. However, the exact number can vary depending on the specific box size you purchase and your personal pour size.