Which description best fits a famous dry stout such as Guinness?

Which description best fits a famous dry stout such as Guinness?

• A. It uses only carbon dioxide for carbonation.
• B. It is a pale lager.
• C. It is aged with oxygen.
• D. It is carbonated with nitrogen gas to create a creamy mouthfeel.

Answer: (D)

Gas used for carbonation shapes mouthfeel and head texture. Guinness, a famous dry stout, achieves its signature creamy, smooth mouthfeel by using nitrogen in the carbonation blend (often with a small amount of CO2). Nitrogen is far less soluble in beer than CO2, so it forms tiny bubbles that rise slowly, creating a dense, creamy head and a velvety feel on the palate. If beer were carbonated with CO2 alone, it would be crisper and sharper, not the characteristic creaminess of this style. A pale lager, oxidation from aging, or any approach that relies on air exposure wouldn’t produce that signature smooth, creamy stout profile. The nitrogen effect is the key factor behind Guinness’s distinctive texture.

Gas used for carbonation shapes mouthfeel and head texture. Guinness, a famous dry stout, achieves its signature creamy, smooth mouthfeel by using nitrogen in the carbonation blend (often with a small amount of CO2). Nitrogen is far less soluble in beer than CO2, so it forms tiny bubbles that rise slowly, creating a dense, creamy head and a velvety feel on the palate. If beer were carbonated with CO2 alone, it would be crisper and sharper, not the characteristic creaminess of this style. A pale lager, oxidation from aging, or any approach that relies on air exposure wouldn’t produce that signature smooth, creamy stout profile. The nitrogen effect is the key factor behind Guinness’s distinctive texture.