Is CO2 the only type of gas you could use to carbonate the beer in your keg. (Okay know carbonate means to use CO2). Something like say Nitrogen or Helium or whatever. If so what would that taste like and or change the flavor of the beer.
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Yeah. Probably is a duplicate. Distsee that question suggested when I wrote this one.– zatbuschOct 9, 2018 at 17:18
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2 Answers
Guinness is a popular example of a nitrogenated beer. Generally the nitrogen produces smaller bubbles and lends a creamier texture to the beer. Not sure on flavor.
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It depends on preference really. I like Guinness on nitrogen. It might be my favorite beer. The CO2 version , however is not nearly as good IMHO. When it comes to milk stouts though I sometimes find that the sharper texture of the CO2 cuts the sweetness better. Nitrogen in these can leave me feeling as though I am drinking a milkshake. Oct 9, 2018 at 16:07
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According to the internet "Aqueous carbon dioxide, CO2 (aq), reacts with water forming carbonic acid, H2CO3 (aq). Carbonic acid may loose protons to form bicarbonate, HCO3- , and carbonate, CO32-. In this case the proton is liberated to the water, decreasing pH. The complex chemical equilibria are described using two acid equilibrium equations."
If you've ever drunk flat carbonated water, you should know the acidic flavour that carbonation imparts to water. I assume it has some impact on the flavour of beer, though presumably since beer already has noticeable flavour this difference is less pronounced.
answered Oct 9, 2018 at 19:30
