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partial boil for all-grain?

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jayg

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Location: Portland, Maine

Post Sun Jan 16, 2011 7:32 am

partial boil for all-grain?

Maybe this has been discussed before, but I was just thinking, why couldn’t I do a partial boil with all-grain? could I do a no sparge mash and collect the most concentrated wort to purposely over shoot my gravity so a partial boil could be done with the equipment I already have. I just finished my 5 gallon Igloo cooler, I have a 5 gallon kettle and my stove will boil about 4 gallons. Maybe some people are thinking it might be better to do a full boil with extract than a partial boil with allgrain, but this for me would be a great move forward and I’m thinking it may be a few dollars cheaper to buy the grain opposed to extract, even though I’m not sparging.
so my second question is what am I missing?, why wouldn’t this work?
Thanks,
Jason
_________________________________________________________________
On Tap: Brown IPA, Caribou Slobber, EPA, Amber Ale
Primary: Oatmeal Stout, hard'n Cider
Secondary:
Bottled: Harvest ale
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beerider

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Location: Santa Barbara

Post Sun Jan 16, 2011 8:12 am

Re: partial boil for all-grain?

My buddy does A.G. and partial boils... It works for him ... :cheers:
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tom sawyer

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Post Sun Jan 16, 2011 8:39 am

Re: partial boil for all-grain?

It would be fine as long as you adjust your hop additions to account for slightly lower utilization. You may also see a slight effect on color (darker) but it'd probably be minimal.

As an alternative, you can just make half batches or up to 4gal batches. Thats what I do with my 5gal pot on the stove. I cool in the sink with several changes of water. I brew at least one batch weekly (often 2) and can barely keep up with drinking it all, I have a couple of pints a night which is 1.75gal/week, the wife drinks half that so it comes to about 2.5gal/wk.
Lennie

Brewing: Lambics (always), dopplebock
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jayg

Apprentice Brewer

Posts: 38

Joined: Mon Mar 01, 2010 10:50 am

Location: Portland, Maine

Post Sun Jan 16, 2011 11:17 am

Re: partial boil for all-grain?

I rely on beersmith to do the thinking for me as far as calculating boil volumes and hop utilization.
Also I've done 1.5 gallon, 2 gallon, and 3 gallon all-grain batches using a 2 gallon cooler and a grain bag. The beers are coming out better each time. I now keg and would like to do a 5 gallon batch a try so I can fill the whole keg. Im thinking it would be fun to try, plus Using grains is a lot funner than extract.
_________________________________________________________________
On Tap: Brown IPA, Caribou Slobber, EPA, Amber Ale
Primary: Oatmeal Stout, hard'n Cider
Secondary:
Bottled: Harvest ale
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a10t2

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Location: Silverton, CO

Post Sun Jan 16, 2011 11:47 am

Re: partial boil for all-grain?

I just did a partial boil on the stove yesterday. I made three gallons of wort, and added 2.5 gal of pre-boiled ice in the fermenter. Even doing a no-sparge mash, my efficiency into the kettle was 71%, and with the reduced heating and chilling times, the entire brew day took less than three and a half hours.
Beer is like porn. You can buy it, but it's more fun to make your own.
http://seanterrill.com/category/brewing/
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BD

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Post Sun Jan 16, 2011 1:33 pm

Re: partial boil for all-grain?

As stated above partial boils will work but as an alternative you could boil 5-6 gallons of wort in two pots. That's what I did before I had decent sized kettles
The lif so short, the craft so long to lerne,
Th'assay so sharp, so hard the conqueringe...
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tom sawyer

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Post Sun Jan 16, 2011 4:54 pm

Re: partial boil for all-grain?

a10t2 wrote:I just did a partial boil on the stove yesterday. I made three gallons of wort, and added 2.5 gal of pre-boiled ice in the fermenter. Even doing a no-sparge mash, my efficiency into the kettle was 71%, and with the reduced heating and chilling times, the entire brew day took less than three and a half hours.


How did you make this ice? Sounds interesting, I'm thinking about a no-sparge and the ice would be a nice way to cool it.
Lennie

Brewing: Lambics (always), dopplebock
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Glug Master

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Location: S.W. Iowa

Post Sun Jan 16, 2011 5:07 pm

Re: partial boil for all-grain?

tom sawyer wrote:How did you make this ice? Sounds interesting, I'm thinking about a no-sparge and the ice would be a nice way to cool it.

Back in the day, before I made an IC, I would boil and cool whatever volume I needed and freeze it in sanitized containers. I found that it was better to freeze it in several smaller containers because large pieces of ice take a long time to thaw. You get the wort in contact with more ice surface with many smaller pieces rather than a couple big ones.
Mont
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a10t2

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Post Sun Jan 16, 2011 5:12 pm

Re: partial boil for all-grain?

tom sawyer wrote:How did you make this ice? Sounds interesting, I'm thinking about a no-sparge and the ice would be a nice way to cool it.

I just boiled it for a couple minutes, poured into some freezer bags, and left it outside overnight to freeze. It worked really well - with gentle stirring, it dropped to pitching temps in 9 minutes.

http://seanterrill.com/2011/01/16/of-ice-and-10p/
Beer is like porn. You can buy it, but it's more fun to make your own.
http://seanterrill.com/category/brewing/
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StormyBrew

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Location: North Dallas

Post Sat Jan 22, 2011 4:07 pm

Re: partial boil for all-grain?

I make two half batchs, all grain, in my 5 gallon igloo tun and 5 gal boil pot on the stove. Long day with two mashes and two boils but works well and makes great beer.

cheers.
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