Advice for NB Nut Brown

Mashing
1

I’ve brewed a few extract, partial mash and a few 1 gallon AG, but this weekend I’m going to be brewing my first 5 gallon AG. Its NB Nut Brown. Just looking for some advice to see if I have my water amounts about right. I’m going to be batch sparging, BTW and using a 5 gallon beverage cooler for my mash tun.

I’m gonna try and shoot for a 6 gallon boil in my new 10 gallon pot and using a turkey fryer burner until I can step that up. Not sure if 6 gallons is too little, but I’ll top it off in the fermenter if my boil off is more than a gallon in an hour.

Here’s what I’m thinking:

8.5 lbs of grain x 1.25 qts per lb = 10.625 qts mash (2.65 gallons)

8.5 x 0.1 gal/lb absorbed = 1.8 gallons absorbed

3.0 gallons wanted from first runnings - 1.8 gallons absorbed = 1.2 gallons short.

1.2 gallons added at end of mash to bring temp up to 168-170.

Collect first running and then sparge with 3 gallons (what temp should I be looking at for sparge)

Add second runnings to first, measure and see how far I’m off of 6 gallons and add water to compensate.

So does this seem about right? I’m kinda basing it off what Denny said on his website. Thanks for any help in advance.

2

After you mash lauter and drain your kettle see how much you get then just batch sparge with whatever you need to make up the volume you want to boil. i would boil 6.5 gallons because you will boil off at least one gallon and you want to have more than 5 gallons post boil because you are going to lose some volume when you transfer to the fermenter. Also keep some DME around and take a boil gravity if your gravity is low you can add it to the boil.

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3

Good idea. I’ll increase my volume to 6.5 pre-boil.

4

Thanks for the advice @brew-cat I got this brewed up Saturday night and used your advice. Ended up with just enough wort to fill my fermenter, fill the tube for my hydrometer and still leave a little liquid with all the trub behind.

Also, first time using my new mash tun, 10 gallon kettle and Blichmann burner. Those three new additions really made it a nice brew day. I’ll try and post some pics.

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