tonyolympia
Well-Known Member
I'm working on mash calcs for a recipe out of "Brewing Classic Styles," just as a learning exercise. The Brew Pal app for iPhone has been my companion in this exercise. For fun, I've been substituting ingredients, yeast strain and amounts, and seeing the effects on the recipe.
I know Brew Pal is supposed to have stability issues, but by and large it seems to function well for me. The problem is that even when I make *no* substitutions, and enter the BCS recipe as is, with the same assumptions about boil volume, efficiency, and every other variable I can identify, Brew Pal comes out with different OG, FG, and ABV numbers than the recipe in the book. It places my recipe (ordinary bitter) clear out of the style guidelines.
If anyone reading this has experience with Brew Pal and knows of a particular assumption or error built into its calculations that would skew my results, I'd sure like to know the secret. This discrepancy is making me doubt my understanding of the calcs in the book.
I know Brew Pal is supposed to have stability issues, but by and large it seems to function well for me. The problem is that even when I make *no* substitutions, and enter the BCS recipe as is, with the same assumptions about boil volume, efficiency, and every other variable I can identify, Brew Pal comes out with different OG, FG, and ABV numbers than the recipe in the book. It places my recipe (ordinary bitter) clear out of the style guidelines.
If anyone reading this has experience with Brew Pal and knows of a particular assumption or error built into its calculations that would skew my results, I'd sure like to know the secret. This discrepancy is making me doubt my understanding of the calcs in the book.