[Robert]

Based on Denny and Hoosierbrew's wisdom, here's the final draft.

6 gallon target
20lb Golden Promise
6lbs Dark Munich
1.5lbs Roast Barley
1lb 425 Chocolate
28.5 total

OG ~1.105 at 60% brewhouse, but who knows? Will be first try at a double mash.

I'm  eager to hear how the double mash goes! Is the grain bill getting evenly split, or is the dark stuff only going in one of the mashes?

[klickitat jim]

Based on Denny and Hoosierbrew's wisdom, here's the final draft.

6 gallon target
20lb Golden Promise
6lbs Dark Munich
1.5lbs Roast Barley
1lb 425 Chocolate
28.5 total

OG ~1.105 at 60% brewhouse, but who knows? Will be first try at a double mash.

I'm  eager to hear how the double mash goes! Is the grain bill getting evenly split, or is the dark stuff only going in one of the mashes?

Calculated total acid needed for full batch, then recalculated removing 10lbs Golden Promise and 4lbs Dark Munich. That tells me how much to add to first mash and second mash. The second mash adds 10lbs GP and 4lbs Dark Munich.

[Phil_M]

My only thought is that would make a great candidate to parti-gyle, but that might be an unnecessary level of complication.

[Robert]

My only thought is that would make a great candidate to parti-gyle, but that might be an unnecessary level of complication.

When Jim first mentioned (on another thread I think) wanting to try a double mash, I thought exactly that! The old timers making "majority beers" and the like with the process would always have "capped" the last mash with fresh malt and run off a normal strength beer.  I recall Jim said no way he was going to have time and space for that. Thanks to Jim for inspiring me to dip back into London and Country Brewer to contemplate things I'll never try.