What is the volume of CO2 typically recommended for porters and stouts?

The volume of CO2 typically recommended for porters and stouts is 1.7 to 2.3 volumes. This range is suitable because it strikes a balance between providing a pleasant carbonation level while allowing the rich, malty flavors typical in these beer styles to shine through. Porters and stouts are known for their full-bodied characteristics and complex flavor profiles, which can be overshadowed by excessive carbonation. A CO2 volume within the 1.7 to 2.3 range allows the beer to retain some perceived sweetness and softness, enhancing the mouthfeel without being overly fizzy. This level of carbonation helps the aromas to be expressed fully, supporting the enjoyment of the beer’s notes of chocolate, coffee, and caramel.