Water profile for Nut Brown?

For a dark beer hard water is okay. Since this beer has relatively low IBUs, don't add too much SO4.

Try the Balanced Profile II in the recipe editor, but reduce the SO4 level. Dublin Dry Stout profile might work too. It will also depend on what your source water is like.

If you really want to go in depth, check our advanced water calculator:
http://www.brewersfriend.com/mash-chemi ... alculator/