We are all standing on the shoulders of giants: https://atgbrewery.com/beer/jorge-castana/ I do not have chestnuts so I am using pecans instead. Against the Grain never got back to me about water profile (or on any of the other questions I had for that matter) so I am going with Bru'n water's Brown Full. ATG can suck it!
adding highlander grog coffee
Honey Brown