Author Topic: Effects of boiling too much water  (Read 1247 times)

Offline BP79

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Effects of boiling too much water
« on: August 30, 2011, 06:57:08 AM »
Hi there - I brewed an Oatmeal Stout two nights ago and accidentally boiled off about 1 gallon of the 2.5 gallons I meant to set aside and cool off.  I didn't realize the volume loss until I added the wort into the primary.  I blame my 6 month old :) for my brain lapse.

Currently my primary is sitting with about 4 gallons of beer and my temperature corrected gravity was 1.132... insanely high, I know.

Given I just can't add another gallon of water now that I'm about 36hrs into fermentation (though no bubbles are in the airlock yet), should I be concerned that there's no way I'm going to get a final gravity of 1.022 and will end up with like a 15% beer?

Thanks.

Offline morticaixavier

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Re: Effects of boiling too much water
« Reply #1 on: August 30, 2011, 07:55:48 AM »
1st check out the thread on maximum OG for yeast viability.

In there someone mentioned that above 1.12 you start to run into issues with osmotic preasure (the solutio is to think for the yeast to be healthy)

I would go ahead and add some boiled and cooled water to get your volume right.
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Offline BP79

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Re: Effects of boiling too much water
« Reply #2 on: August 30, 2011, 08:04:44 AM »
Thanks for pointing me to that thread.  Seems I'm just above the threshold for the yeast to do anything.  I'll go ahead with your suggestion of boiling/cooling/adding 1 gallon and then crossing me fingers.  Would you suggest I slowly stir everything too, or should I not longer be concerned with aerating?

Offline tygo

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Re: Effects of boiling too much water
« Reply #3 on: August 30, 2011, 08:07:32 AM »
Well...how much yeast did you pitch into this bad boy?  My first inclination would be to let it ride and see what you end up with.

You must have been shooting for a pretty sizeable beer even at five gallons so if you pitched a gigantic amount of yeast like you'd want to for a beer that big and did everything else right you might end up with something good.

As far as FG goes I doubt you're going to get down to 1.022 but that really depends on your process.  Was this an extract batch or all-grain?

Trying to fix it at this point might do more harm than good and you can always chalk it up to a lesson learned if it doesn't work out.  And maybe it'll end up being the best batch you've ever brewed  ;)
Clint
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Offline BP79

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Re: Effects of boiling too much water
« Reply #4 on: August 30, 2011, 08:33:51 AM »
I pitched 100BB little guys from a Wyeast 1056 smack pack that, according to their site, has a tolerance up to 11%.

The kit was a Father's Day gift that's your typical grain/DME package with a 7.2% ABV, so yes, it's sizable, but not like an Imperial Russian or anything like that.

I'll wait til the end of the day to see if anyone else chimes in, if not, I'll add 1 additional gallon tonight b/c I'm worried about what's on Wyeast's site.

Like you said though, it could turn out to be a killer brew.  Decisions decisions. 

Offline hokerer

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Re: Effects of boiling too much water
« Reply #5 on: August 30, 2011, 08:42:46 AM »
I pitched 100BB little guys from a Wyeast 1056 smack pack that, according to their site, has a tolerance up to 11%.

Are you saying you just pitched one smack pack?  no starter?  If so, then you way way underpitched.
Joe

Offline morticaixavier

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Re: Effects of boiling too much water
« Reply #6 on: August 30, 2011, 08:43:11 AM »
You might also want to consider pitching MORE YEAST!!!! one little smack pack is going to be really overwhelmed with even the diluted version.
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Offline tygo

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Re: Effects of boiling too much water
« Reply #7 on: August 30, 2011, 08:48:12 AM »
First off, you underpitched by quite a bit no matter what else is going on.  Even for a med-high gravity ale that would get you 7.2% ABV you should have pitched 2-3x as much yeast.  Check out http://www.mrmalty.com/calc/calc.html to help figure out pitching rates to use.

Second, if you started out with 4 gallons of 1.132 SG wort, and you added a gallon of water then you would still have an OG of ~ 1.105.  Are you sure your hydrometer measurement was correct?  I'm assuming you did a partial boil and added it to water already in the fermenter, right?  If so did you make sure that the entire wort volume was very thoroughly mixed before taking the sample?
Clint
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Offline morticaixavier

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Re: Effects of boiling too much water
« Reply #8 on: August 30, 2011, 08:51:08 AM »
I was just doing that math myself. even with an FG of 1.022 it's still way over 7.2 isn't it?
"Creativity is the residue of wasted time"
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Offline tygo

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Re: Effects of boiling too much water
« Reply #9 on: August 30, 2011, 09:01:32 AM »
I was just doing that math myself. even with an FG of 1.022 it's still way over 7.2 isn't it?

From 1.105 to 1.022 would be almost 11%.  It would also involve putting about 12 lbs of DME into the recipe.  I don't think that gravity reading is correct.
Clint
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Offline Slowbrew

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Re: Effects of boiling too much water
« Reply #10 on: August 30, 2011, 09:09:31 AM »
Can you post the recipe you made?  Knowing what went into the brew will really help everyone get their head around what you have going on.

Thanks!

Paul
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Offline BP79

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Re: Effects of boiling too much water
« Reply #11 on: August 30, 2011, 09:30:35 AM »
morticaixavier - I I agree, my OG seems crazy high which what sparked me to start this post

tygo - I shook the primary for 5 minutes then used a sanitized autosiphon to extra enough to fill the test tube, then tested it, then pitched the yeast.  BUT I never thought to check Mr. Malty's even though I actually bookmarked it months ago, nor did I look at the sticky-note I have in Palmer's book about needing a starter when using smaller smack-packs.  There definitely was not 12 lbs of DME, but I spun the hydrometer and make a small adjustment for temperature according to the set of instructions that came with it and got the 1.132.

Paul - It's the Rogue Oatmeal Stout kit, which unfortunately just says "speciality grains ### without any weight mentioned.  

At this point I'm going to assume this beer is toast, so I may as well add 1.5x more yeast and another gallon and see what happens...


Offline tschmidlin

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Re: Effects of boiling too much water
« Reply #12 on: August 30, 2011, 09:48:54 AM »
If this is the brewcraft kit there's just no way that is the right gravity reading, either that or your volume reading is way off.  This site has a lot of details on that kit, with an OG of 1.070.
Quote
pecifications of this Beer Style (anticipated) Ideal Fermentation Temperature= 64?F OG= 1.070 / FG= 1.016 IBU's= 62 / ABV= 7.2% Color= 50 SRM Yield= 5 gallons Contents of this Beer Kit Brewing Ingredients Grain Steeping Bag Hop Steeping Bags Priming Sugar Crown Caps Brewing Instruction Sheet Bottling Instructions List of Ingredients Fermentables: 3 lb Briess CBW Brewers Gold Dry Malt Extract 2 lb Briess CBW Traditional Dark Dry Malt Extract 1 lb Extra Dark Aromatic Belgian Candi Sugar Crystals Specialty Grains: 1 lb Pale 2-row Malt .5 lb Flaked Oats 1 lb Chocolate Malt .75 lb Roasted Barley .25 Crystal Malt 150L Bittering Hops: 2 oz Cascade Pellet Hops Flavor Hops: 2 oz Cascade Pellet Hops Yeast: 1 packet Lallemand Nottingham This Beer Ingredient Kit

Since we can't trust your original gravity reading, taking the gravity at this point is kind of useless.  I think at the very least you should add more yeast, and probably add more water.  36 hours into it isn't that long, especially considering it's high OG and underpitched.
Tom Schmidlin

Offline BP79

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Re: Effects of boiling too much water
« Reply #13 on: August 30, 2011, 09:58:03 AM »
That's the exact one.  I went through 3 pages of Google searches and couldn't find the exact ingredients.  I'm going to run to a local supply store tonight and can hopefully remedy this. 

Thanks for all the help here guys... this is very frustrating since my last beer (only my 3rd batch) turned out fantastic, so I of course thought I knew what the heck I was doing!

Offline tygo

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Re: Effects of boiling too much water
« Reply #14 on: August 30, 2011, 10:16:14 AM »
Good luck with the rescue.  If nothing else it'll be a learning experience.  Let us know how it turns out.
Clint
Wort Hogs

Fermenting: Wit
On Tap: Lucifer's Hammer Golden Strong Ale, Dopplebock, Old Fuzzynut's Ale