Dual batch blend???

ChadChaney · 10-17-2011, 01:43 AM

OK, so I have a small kettle for partial extract brewing, and the option to use another one. I have a BIG DIPA planned and I was wondering if it would be better for the beer and the hop utilization to do a modified full boil in 2 kettles simultaneously? Can I split the ingredients 50/50 and essentially make 2 batches of the same wort and the combine into the same fermentor? Anyone try this or have any ideas?

windbreaker123 · 10-17-2011, 06:20 AM

My understanding is to want to do a 5 gal batch between 2 kettles. Correct ? What does the recipe call for ? Full or a partial boil ? You have to adjust hops accordingly.

ChadChaney · 10-17-2011, 04:39 PM

I made the recipe myself, with the help of a pal on HBT, so designed for partial I think, I just I would get better hop utilization with a full boil. In my understanding, you get better hop flavor and utilization when you do a full boil. And yes, a 5 gallon batch between 2 kettles. Why would I have to adjust the hops?

thebluewaffle · 10-18-2011, 07:03 PM

http://www.byo.com/stories/techniques/article/indices/30-extract-brewing/619-extract-method-to-your-madness

Good article on exactly what your asking.

ChadChaney · 10-18-2011, 11:07 PM

Cool, thanks, only difference is I am doing a simultaneous boil of 2 batches.

NeedsMoreHops · 10-19-2011, 05:04 AM

Hi Chad, I'm pretty much doing the same thing...but I just bottled so I can't tell you how it turned out yet. When I started last winter, I had a 3.5 gallon brewpot and did partial boils. Now that the weather has cooled off and I'm starting up again, I bought a 5 gallon brewpot and I'm splitting a full boil between the two. 3 gallons in the big one, 2 gallons in the other and then a little top off for the boil off in the fermenter. I combine them for cool down and I want to believe everything will work out fine...we'll see.

ChadChaney · 10-19-2011, 05:29 PM

NeedsmoreHops, I just did the same thing last night, hit my OG perfectly, actually, a tiny tiny bit high, better than short right! Pitched 2 1Ltr starters of Pacman yeast and had activity an hour later. When i checked it this am, it was cruising along really nice, nice high krausen already! Keep me posted, and Ill do the same!

thebluewaffle · 10-20-2011, 12:25 AM

Quote:

Originally Posted by ChadChaney

Cool, thanks, only difference is I am doing a simultaneous boil of 2 batches.

It says you need to have two consecutive days, but if your stove is big enough to accommodate two pots at once I don't see why you wouldn't be able to.

zeekage · 10-20-2011, 12:59 AM

Quote:

Originally Posted by ChadChaney

Why would I have to adjust the hops?

beacause of

Quote:

Originally Posted by ChadChaney

In my understanding, you get better hop flavor and utilization when you do a full boil.

If you design a recipe for a partial boil, and get your IBUs in the range you want, and then do a full boil you'll end up with a lot more bitter beer than you planned on. Try it in beersmith or one of the online recipe designers. I jsut did a quick test and IBUs for one recipe i have in beersmith goes from 19 with a 3 gallon brew pot, up to 41 with a full boil. You need to account for that. Late extract addition can help alleviate that problem though, as it's the gravity of the wort and not the volume so much that affects the hop utilization.

So just be wary of that fact and account for it so you end up with the beer you planned on. Nothing worse than putting in hours of effort and not getting your desired final product.

ChadChaney · 10-20-2011, 05:06 AM

Good points, didn't even think about that, thanks! Already brewed the DIPA, so hope it comes out ok, I did do a large late addition of DME so hopefully that will correct that issue!

As for the 2 separate days of making wort, no thanks, I do not want unfermenting wort sitting around for a day, and my stove was big enough.