Adding water to the fermenter - Home Brew Forums
Home Brew Forums > Home Brewing Beer > Beginners Beer Brewing Forum > Adding water to the fermenter
Cool Brewing Giveaway - Supporting Membership Drive & Discount

Reply
 
Thread Tools
Old 10-09-2007, 04:13 PM   #1
Tco.
Recipes 
 
Oct 2007
Missoula MT
Posts: 3


I may have done something stupid.
I didn’t want my 5 gallon carboy to foam over so I added less water than I needed to. It has fermented for two days now and I want to add a pint or two of clean cool water now.
I think I should make a list of pros and cons before I proceed. Any ideas?



 
Reply With Quote
Old 10-09-2007, 04:50 PM   #2
malkore
 
malkore's Avatar
Recipes 
 
Jun 2007
Nebraska
Posts: 6,922
Liked 37 Times on 35 Posts


you'll have to boil and cool that water first. clean doesn't mean sterile...and that's what you need right now to avoid infecting a batch.

remember it'll alter your original gravity too.

don't worry about mixing it, it'll mix itself in through fermentation and the eventual racking to secondary.


__________________
Malkore
Primary: English Mild
On tap: Pale Ale, Lancelot's Wheat, English Brown Ale, Steam Beer, HoovNuts IPA
Bottled: MOAM, Braggot, Raspberry Melomel, Merlot, Apfelwein, Pyment, Sweet mead, Cabernet
Gal in 2009: 27, Gal in 2010: 34, Gal in 2011: 13, Gal in 2012: 10

 
Reply With Quote
Old 10-09-2007, 05:05 PM   #3
Philip1993
Recipes 
 
Jul 2007
Posts: 1,633
Liked 9 Times on 9 Posts


Lately, there have been a number of thought provoking posts along the vein of; It doesn't make sense that XX is "bad" if similar procedure "YY" is not bad. This is one of them. I'm not saying that Malkore is wrong, just that perhaps we should explore/evaluate the CW. That said;

Lots of brewers add non-sterile water to their wort post boil to cool it, increase volume, etc. At that point, no alcohol exists to protect the wort and yeast populations are at their lowest. 2 days later alcohol is present and yeast populations are high. If adding it post boil is appropriate, does it really matter when you add the non-sterile water?

Thoughts/comments?

 
Reply With Quote
Old 10-09-2007, 05:19 PM   #4
Evan!
 
Evan!'s Avatar
Recipes 
 
Aug 2006
Charlottesville, VA
Posts: 11,821
Liked 87 Times on 72 Posts


Quote:
Originally Posted by pldoolittle
Lately, there have been a number of thought provoking posts along the vein of; It doesn't make sense that XX is "bad" if similar procedure "YY" is not bad. This is one of them. I'm not saying that Malkore is wrong, just that perhaps we should explore/evaluate the CW. That said;

Lots of brewers add non-sterile water to their wort post boil to cool it, increase volume, etc. At that point, no alcohol exists to protect the wort and yeast populations are at their lowest. 2 days later alcohol is present and yeast populations are high. If adding it post boil is appropriate, does it really matter when you add the non-sterile water?

Thoughts/comments?
Not sure of the exact answer here, but all I know is that I've had brews go into the bottling bucket tasting like a million bucks, and come out of the bottle all gushing and infected. So don't think that having alcohol is enough to stave off contamination. It's not vodka.
__________________
MOSS HOLLOW BREWING CO.
Aristocratic Ales, Lascivious Lagers


.planned:
•Scottish 80/- •Sweet Stout •Roggenbier
.primary | bright:
98: Moss Hollow Soured '09 72: Oude Kriek 99: B-Weisse 102: Brett'd BDSA 104: Feat of Strength Helles Bock 105: Merkin Brown
.on tap | kegged:
XX: Moss Hollow Springs Sparkling Water 95: Gott Mit Uns German Pils 91b: Brown Willie's Oaked Abbey Ale 103: Merkin Stout
98: Yorkshire Special 100: Maple Porter 89: Cidre Saison 101: Steffiweizen '09 (#3)

 
Reply With Quote
Old 10-09-2007, 05:40 PM   #5
Beerthoven
 
Beerthoven's Avatar
Recipes 
 
May 2007
Cary, NC
Posts: 2,158
Liked 31 Times on 27 Posts


Quote:
Originally Posted by pldoolittle

Lots of brewers add non-sterile water to their wort post boil to cool it, increase volume, etc. At that point, no alcohol exists to protect the wort and yeast populations are at their lowest. 2 days later alcohol is present and yeast populations are high. If adding it post boil is appropriate, does it really matter when you add the non-sterile water?
Quote:
Originally Posted by Evan!
Not sure of the exact answer here, but all I know is that I've had brews go into the bottling bucket tasting like a million bucks, and come out of the bottle all gushing and infected. So don't think that having alcohol is enough to stave off contamination. It's not vodka.
I've topped off a few extract batches with unboiled tap water with no problems. But that was before fermentation.

I would not recommend adding unboiled tap water to a batch afterfermentation (before bottling). I don't have any science to back this up, its just paranoia.

It really comes down to the quality of your water source and the cleanliness of your pipes and faucette. Seems like everyone should make a determination for themselves based on local conditions.

FWIW, I think it is the PH of beer and not the alcohol level that is the protective factor.
__________________

Primary/Secondary: --
Kegged: #129 Northern English Brown
Planned: Classic APA, Red IPA

 
Reply With Quote
Old 10-09-2007, 06:33 PM   #6
joebou4860
 
joebou4860's Avatar
Recipes 
 
Jan 2007
Clayton, NC
Posts: 314
Liked 3 Times on 2 Posts


From the sounds of it you want to add such a small amount of water (~25 oz) that I would just enjoy two less slightly higher ABV beers. I dont think any potential risks are worth having a couple extra beers. If you were down a gallon or so this would be a different story but i think for a pint or two you should leave well enough alone and chalk it up to experience.

 
Reply With Quote
Old 10-09-2007, 07:10 PM   #7
Bobby_M
Vendor and Brewer
HBT_SPONSOR.png
 
Bobby_M's Avatar
Recipes 
 
Aug 2006
Whitehouse Station, NJ
Posts: 22,980
Liked 1586 Times on 1023 Posts


The only harm in adding water after fermentation is adding oxygen at the same time. If you boil the water for 30 minutes first to drive the o2 out and sanitize, then cool it, there's no harm whatsoever IMHO.
__________________
Welcome to BrewHardware.com. I love you.
BIAB Large Mesh False Bottoms and SS HERMS COILS are IN!!
Chugger Pumps, Pump Kits, Camlocks, Sightglasses, Clear USA made Silicone Tubing, RIMS, Electric Install Parts, etc.

 
Reply With Quote
Old 10-09-2007, 07:24 PM   #8
Orfy
For the love of beer!
HBT_LIFETIMESUPPORTER.png
 
Orfy's Avatar
Recipes 
 
Sep 2005
Cheshire, England
Posts: 11,731
Liked 94 Times on 62 Posts


It may not be best practice and it may increase risks but I wouldn't worry too much about it.
But like others said is it worth it for a few extra bottles?
__________________
GET THE GOBLIN
Have a beer on me.

 
Reply With Quote
Old 10-10-2007, 01:56 AM   #9
Philip1993
Recipes 
 
Jul 2007
Posts: 1,633
Liked 9 Times on 9 Posts


Quote:
Originally Posted by Evan!
So don't think that having alcohol is enough to stave off contamination. It's not vodka.
I wasn't implying that the alcohol was a life saver, only that post-fermented beer should be more resistant than pre-fermented beer. Hence, if it was not too big a risk pre-fermentation wouldn't it be less of a risk post-fermentation.

 
Reply With Quote
Old 10-10-2007, 02:24 AM   #10
Yooper
Ale's What Cures You!
HBT_ADMIN.png
 
Yooper's Avatar
Recipes 
 
Jun 2006
UP of Michigan, Winter Texan
Posts: 68,515
Liked 7369 Times on 5209 Posts


The risk really isn't contamination (although it may be a slight risk), the risk is oxygenation. Tap water is loaded with oxygen (we even have aerators on the faucet) and would be a danger to post-fermentation I would guess. That, and it would mess up the sg and the fg since it was basically watered down.


__________________
Broken Leg Brewery
Giving beer a leg to stand on since 2006

 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Adding Orange Peel to Fermenter MightyCow9 Recipes/Ingredients 17 01-31-2010 03:21 AM
Adding sugar to the fermenter crowsmith8 General Beer Discussion 2 10-09-2009 10:06 PM
Adding sugar to fermenter? Picobrew General Techniques 8 08-25-2009 12:07 PM
Aroma Hops and Adding Wort to the Fermenter OrangeCatBrewery Beginners Beer Brewing Forum 2 06-11-2008 06:05 PM
Adding yeast to primary fermenter beckyg5044 Beginners Beer Brewing Forum 5 04-15-2006 04:15 PM


Forum Jump