Author Topic: calciuim chloride post ferment  (Read 413 times)

Offline morticaixavier

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calciuim chloride post ferment
« on: December 13, 2012, 11:47:16 AM »
Hey All,

My christmas beer is an oatmeal raisin stout with spices this year. It's all done and in the keg and it's pretty nice except for two things;

There is a bit too much astringency, I suspect because I soaked cinnamon sticks in vodka for a month and added the vodka to the keg. I suspect this because the astringency is kind of woody, like that you might find in a wood aged beer. Although I also think the skins of the raisins might have added some tannins, they were in the beer for a couple, three weeks.

There is a touch too much tartness, I suspect from the raisins as it's kind of raisiny/grapy/fruity tartness, I don't THINK it's infected but it could be that as well I supose.

So last night I decided to do an experiment, I took a couple tiny grains of calcium chloride and dropped them right in my glass with a couple oz of beer and swirled it around and I think it helped. I think by accentuating the malt a bit more it draws attention away from the flaws a bit while still allowing those flavours that I want to be showcased. I LIKE the tart raisin and the slightly woody cinnamon, just not quite so much.

Finally to the actual question. As a ball park how much Calcium Chloride should I be thinking about adding? I can't imagine I would want more than say 5-10 grams. Is there a convienient way to use bru'n water to figure out some PPM values for the chloride based on post ferment additions? I suspect I could simply by plugging in the volume of beer in the keg and adding the salt until the ppm is where i want it.

I see recommendations for a roughly 2:1 sulfate:chloride ratio for hoppy beer, would I want to reverse this for malty beers? 1:2 sufate:chloride?
"Creativity is the residue of wasted time" - A. Einstein
"Is that a sssssstraight jacket?" - That weird guy on Oddities
On Tap:
2 Beers 1 recipe:
  American Pale Ale (WLP001)
  Belgian Pale Ale (WLP545)
In Bottles:
Tipsy Santa stout
2011 Sweet William BW
2011 Rumble Fish - Rumble barrel aged BW
2012 Belgian Wheat Wine with coconut sugar
2012 Sweet William maple BW
2012 All Munich BW

Offline mabrungard

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Re: calciuim chloride post ferment
« Reply #1 on: December 13, 2012, 12:07:05 PM »
I haven't thought of this before, but maybe there is some merit.  Assuming that the spices added some excess tannins to the beer, it could be possible to chelate those tannins with a dose of calcium ions.  And since you wouldn't want to enhance the drying perception of the beer, sulfate is out.  So calcium chloride could be a valid option to help with this remediation. 

Do explore this effect some more.  It could work.  Your palate is as good as anyone's.  Although, I would suggest that you gather some friends and explore the effect more scientifically by performing blind triangle testing to assess the effect. 

Thanks for sharing!
Martin Brungard, P.E. D.WRE
Carmel, IN

BJCP National
Foam Blowers of Indiana (FBI)

Brewing Water Information at:
https://sites.google.com/site/brunwater/

Offline morticaixavier

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Re: calciuim chloride post ferment
« Reply #2 on: December 13, 2012, 01:06:48 PM »
I haven't thought of this before, but maybe there is some merit.  Assuming that the spices added some excess tannins to the beer, it could be possible to chelate those tannins with a dose of calcium ions.  And since you wouldn't want to enhance the drying perception of the beer, sulfate is out.  So calcium chloride could be a valid option to help with this remediation. 

Do explore this effect some more.  It could work.  Your palate is as good as anyone's.  Although, I would suggest that you gather some friends and explore the effect more scientifically by performing blind triangle testing to assess the effect. 

Thanks for sharing!

Thanks Martin,

I will try to put something together.
"Creativity is the residue of wasted time" - A. Einstein
"Is that a sssssstraight jacket?" - That weird guy on Oddities
On Tap:
2 Beers 1 recipe:
  American Pale Ale (WLP001)
  Belgian Pale Ale (WLP545)
In Bottles:
Tipsy Santa stout
2011 Sweet William BW
2011 Rumble Fish - Rumble barrel aged BW
2012 Belgian Wheat Wine with coconut sugar
2012 Sweet William maple BW
2012 All Munich BW