So, I have noticed over the years that when I bottle a batch in multiple bottle sizes that the larger bottles are more carbonated than the smaller bottles. My guess is that this is a function of the ratio of head space to total volume. This effect is most noticeable when using very large bottles such as 750 ml bottles and larger.

My question. Does anyone know of a calculator that compensates for bottle size when determining the amount of priming sugar? The John Palmer nomogram in his "How to Brew" and "Brewing Classic Styles" only considers the beer temperature and the desired volumes of CO2. I have some very large bottles (~42 oz.) and I want to get the carbonation at least in the ball park.

My question. Does anyone know of a calculator that compensates for bottle size when determining the amount of priming sugar? The John Palmer nomogram in his "How to Brew" and "Brewing Classic Styles" only considers the beer temperature and the desired volumes of CO2. I have some very large bottles (~42 oz.) and I want to get the carbonation at least in the ball park.

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