Originally Posted by SevenFields
I ordered some ingredients to do a few recipes from the Brewing Classic Styles book. But when I was getting ready to brew one, I noticed that the recipes in the book list a pre boil volume of 7 gallons.
I always do 5! If I do five, does this affect the amount of ingredients?
The recipes end up with 6 gallons post-boil, and 5.5 going into the fermenter- basically a 5 gallon finished batch.
If you're usually doing a 5 gallon batch (even with a 5 gallon boil), you could keep the recipe the same and just plan a 5.5 gallon batch. That gives you extra wort (beer) for racking and trub losses. In my mind, it's not a big difference between a 5.5 gallon batch and a 5 gallon batch into the fermenter so I wouldn't worry about it. There might be a slight difference in IBU calculations, or in OG, but not very much.