calculating beer calories depends on two factors which is given below if you directly want to see the formulae to calculate beer calories, directly go below original gravity Final gravity These don't relate to physics directly, these are the term related to both beer craft industry and common density of the nonalcoholic beverages. Original Gravity It is the relative gravity before the fermentation process. Final Gravity it is the relative density measured after the completion of the fermentation process. ABV = ( OG - FG ) * 131.25. ABV = alcohol by volume, OG = original gravity, and FG = final gravity . So, using this formula with a beer having an OG of 1.045 and a FG of 1.012, your ABV would be 4.33%. [NOTE: this ABV is not the calorie content, ABV i...
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