2 beers/1 mash

[egill23]

Hi all! I am going to try and brew 2 stouts out of one grain bill. One imperial and one regular stout. I would like to know if anyone has tried this and if so, can you guide me through the process? Any help is appreciated.

Thanks

 

[emyers]

Make sure you split the sparge volume with the grain absorption only calculated into the first batch and the remaining total water split evenly.

 

[binabik]

Partigyle. Depending on the size of your original batch you can do multiple beers. Take up to 3 runnings and mix and match to get the beers you want. Good luck. Let us know how it goes.

https://www.homebrewtalk.com/wiki/index.php/Parti-gyle

 

[MitDaseinBier]

Partigyling an imperial stout recipe is rather easy. First batch is essentially a no-sparge batch. This leaves behind a good deal of leftover wort in the mash for the sparge to run into a second stout that will probably be sitting around 4.5% (unless it's a really big first running or you get 80+% eff). No-sparge nets me about 45-50% efficiency, and another 30% is very doable on the partigyle's second running stout. Don't do a mashout. It's helpful to have the sparge continue converting during the time your boiling the first runnings, and I only do 2 runnings. The second runnings is sparged.