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Campden Tablets and Chlorine

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raspsu1

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Post Tue Jun 29, 2010 10:59 am

Campden Tablets and Chlorine

Hello All. So we had a pet fish die the other day. When my wife when to buy another one they asked us to bring in a water sample to test. Said it was very high in Chlorine (we did a water change the previous day). So with that, I'd assume I should probably get some campden tablets. The water report I saw for my city looked to be in range but I guess something is going on from the source to my house.

For those of you that use campden tablets, do you use them just because its easy/cheap or did you actually test your water and figure out you needed them.

Does anyone just boil water for a little before putting in your extract to try to get out any chlorine?
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Duder

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Post Tue Jun 29, 2010 11:22 am

Re: Campden Tablets and Chlorine

Usually, collect water the night before, let it stand (uncovered) and add Campden as cheap insurance.

Good Luck
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TG

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Post Tue Jun 29, 2010 1:10 pm

Re: Campden Tablets and Chlorine

Chlorine can evaporate out overnight or be boiled out in an hour. But chloramine can't. Most water districts are changing over to chloramine.

One Camden tablet will get rid of chloramines from 20 gallons of water almost instantaneously.

:cheers:
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Duder

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Post Tue Jun 29, 2010 1:19 pm

Re: Campden Tablets and Chlorine

Mine uses chlorine. I checked.

You are correct on chloramine having to be chemically treated, however.

Good Luck
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raspsu1

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Post Tue Jun 29, 2010 1:27 pm

Re: Campden Tablets and Chlorine

Duder wrote:Mine uses chlorine. I checked.

You are correct on chloramine having to be chemically treated, however.

Good Luck


Does chloramine cause any off flavors or cause any issues?
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markusg

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Post Tue Jun 29, 2010 1:41 pm

Re: Campden Tablets and Chlorine

raspsu1 wrote:
Duder wrote:Mine uses chlorine. I checked.

You are correct on chloramine having to be chemically treated, however.

Good Luck


Does chloramine cause any off flavors or cause any issues?


both cause chlorophenols (sp?) which give a band-aid taste. Both chloramine and hypochlorite will lead to off flavors. Chloramine is more stable then hypochlorite (aka chlorine bleach) and takes months to break down while hypo only takes 1-2 days (or a couple hours if boiled)

Hyporchlorite is ClO, chloramine is NH2Cl. Chlorine is an element and is contained in both. I assume the previous posts are refering to Hypochlorite when they say chlorine.
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markusg

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Post Tue Jun 29, 2010 1:50 pm

Re: Campden Tablets and Chlorine

It should also be noted that Chloride compounds (containing Cl2) will not react with the phenols from the grain and yeast. At least not in quantities that will cause issue. Since Cl2 is stable enough that the phenols will not strip the chlorine atoms from the Cl2.

At least that is my understanding.
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drew22to375

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Post Tue Jun 29, 2010 3:50 pm

Re: Campden Tablets and Chlorine

I collect water the night before and add a campden tablet.



Get yourself a bottle of Amquel or prime the next time you are at your pet store. It should help decrease your casualties the next time you do a water change.

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nyakavt

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Post Wed Jun 30, 2010 5:50 am

Re: Campden Tablets and Chlorine

BTW if you are using campden tablets there is no need to collect the water the night before, as TG says the reaction takes only a few seconds.
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Duder

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Post Wed Jun 30, 2010 9:17 am

Re: Campden Tablets and Chlorine

BTW if you are using campden tablets there is no need to collect the water the night before, as TG says the reaction takes only a few seconds.


Absolutely correct. Except, for me it speeds up the brew day. :D Having everything out and ready to go is really nice.

Good Luck
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irod

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Post Wed Jun 30, 2010 11:17 am

Re: Campden Tablets and Chlorine

nyakavt wrote:BTW if you are using campden tablets there is no need to collect the water the night before, as TG says the reaction takes only a few seconds.


So, if I fill my boil kettle with water, plop in a tablet, it is instantaneous? Doesn't the tablet have to dissolve? Can I start to heat up the water while the tablet is dissolving?
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Duder

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Post Wed Jun 30, 2010 12:04 pm

Re: Campden Tablets and Chlorine

Crush up the tablet.

It will dissolve faster.

Good Luck
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Shadetree

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Post Wed Jun 30, 2010 12:24 pm

Re: Campden Tablets and Chlorine

Duder wrote:Crush up the tablet.

It will dissolve faster.

I've found that if I drop the tablet in, then go do something for a minute or two, the tablet hydrates and falls apart, making it easy to stir in when I come back.
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whl

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Post Wed Jun 30, 2010 7:03 pm

Re: Campden Tablets and Chlorine

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VictorWI

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Post Thu Jul 01, 2010 11:52 am

Re: Campden Tablets and Chlorine

Duder wrote:
BTW if you are using campden tablets there is no need to collect the water the night before, as TG says the reaction takes only a few seconds.


Absolutely correct. Except, for me it speeds up the brew day. :D Having everything out and ready to go is really nice.

Good Luck

+1

Absolutely! As well as having water that is 20+ degrees warmer than when it came out of the tap.
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