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Feeling the Pressure


Natalie Kapteyn — Springfield, Missouri asks,

How does elevation and atmospheric pressure affect beer carbonation and dispensing? I scuba dive and understand the effects of changing pressure. Wondering how my homebrew may be affected by Big elevation changes?

Atmospheric pressure does affect beer carbonation and dispense, but the answer to this question is a little confusing depending on where the beer being dispensed was carbonated, and how carbonation is defined.
Response by Ashton Lewis.