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Author Topic: Chlorine removal from water  (Read 391 times)

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Offline Scrivenovski

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Chlorine removal from water
« on: April 08, 2018, 07:29:33 AM »
I generally use carbon filtered tap water for most of my beers. My filter has gone tits up and I've got a chance to squeeze a brew in today - Trying a NEIPA with the Vermont yeast I got from Nige and leftover South African hops from a recent SABC event.

I know of people letting brewing water sit overnight to allow chlorine to evaporate but I wasnt that organised last night. I've set aside the water I need in buckets this morning to use in a few hours - I used hot water hoping it will speed up the chlorine dispersion and will try a taste test before brewing. I was thinking about raising my strike water to temperature uncovered too.

Anyone got any experience whether 3 hours or so will be enough to remove most of the chlorine from warm water? If all goes well the result will be available for tasting at the SABC BeerBQ next month.



Offline Mark D Pirate

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Re: Chlorine removal from water
« Reply #1 on: April 08, 2018, 07:47:58 AM »
i may be wrong here but though we had chloramines added to Adelaide water , these do not vent off .
got any campden tablets ?
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Offline Scrivenovski

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Re: Chlorine removal from water
« Reply #2 on: April 08, 2018, 09:55:21 AM »
i may be wrong here but though we had chloramines added to Adelaide water , these do not vent off .
got any campden tablets ?
Nup. I guess I'll find out how much is currently in the water.

Offline Scrivenovski

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Re: Chlorine removal from water
« Reply #3 on: April 08, 2018, 10:09:31 AM »
i may be wrong here but though we had chloramines added to Adelaide water , these do not vent off .
got any campden tablets ?
I also think standard carbon filters dont necessarily remove chloramines either?

Offline DrSmurto

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Re: Chlorine removal from water
« Reply #4 on: April 08, 2018, 11:06:04 AM »
i may be wrong here but though we had chloramines added to Adelaide water , these do not vent off .
got any campden tablets ?
I also think standard carbon filters dont necessarily remove chloramines either?
They should. Carbon filters remove all organic/neutral compounds from the water.

Chloramine is volatile like chlorine so will evaporate if left in an open container. It also reacts with sulfite.

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Offline Mark D Pirate

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Re: Chlorine removal from water
« Reply #5 on: April 08, 2018, 12:37:28 PM »
i may be wrong here but though we had chloramines added to Adelaide water , these do not vent off .
got any campden tablets ?
I also think standard carbon filters dont necessarily remove chloramines either?
They should. Carbon filters remove all organic/neutral compounds from the water.

Chloramine is volatile like chlorine so will evaporate if left in an open container. It also reacts with sulfite.

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What sort of timeframe is involved for chloramine to vent off ?
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Offline DrSmurto

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Re: Chlorine removal from water
« Reply #6 on: April 08, 2018, 01:39:29 PM »
i may be wrong here but though we had chloramines added to Adelaide water , these do not vent off .
got any campden tablets ?
I also think standard carbon filters dont necessarily remove chloramines either?
They should. Carbon filters remove all organic/neutral compounds from the water.

Chloramine is volatile like chlorine so will evaporate if left in an open container. It also reacts with sulfite.

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What sort of timeframe is involved for chloramine to vent off ?
Similar to chlorine, leave out overnight.

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Offline Edi Amin

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Re: Chlorine removal from water
« Reply #7 on: April 08, 2018, 03:16:35 PM »
I've been told Re circulating/ bubbling with a pump speeds up evaporation.
My BAC varies but I am always full of shit.

Offline DrSmurto

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Re: Chlorine removal from water
« Reply #8 on: April 08, 2018, 05:42:29 PM »
I've been told Re circulating/ bubbling with a pump speeds up evaporation.
Yes, that is the case.

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Offline Scrivenovski

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Re: Chlorine removal from water
« Reply #9 on: April 08, 2018, 09:44:24 PM »
I put what I needed in 3 buckets - from hot water tap, 60 degrees. left for 3 hours, heated to strike temp, 72 degrees with no lid. No chlorine aroma when it went in, will see how it goes.  New filter is on the list.

Offline Jack of all biers

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Re: Chlorine removal from water
« Reply #10 on: April 11, 2018, 07:15:32 AM »
Next time you are in a hurry, you can use Vitamin C tablets (500mg Ascorbic Acid will do a lot of water).  Vitamin C (Ascorbic Acid) is an anti oxidant and because chlorine is similar to oxygen, Ascorbic Acid removes the chlorine too.  This is effective for chlorine and chloramines.  Essentially works very similar to sodium and potassium metabisulphite.

Offline Scrivenovski

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Re: Chlorine removal from water
« Reply #11 on: April 11, 2018, 04:10:39 PM »
Next time you are in a hurry, you can use Vitamin C tablets (500mg Ascorbic Acid will do a lot of water).  Vitamin C (Ascorbic Acid) is an anti oxidant and because chlorine is similar to oxygen, Ascorbic Acid removes the chlorine too.  This is effective for chlorine and chloramines.  Essentially works very similar to sodium and potassium metabisulphite.
And resulting beer helps prevent scurvy. Nice.

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Re: Chlorine removal from water
« Reply #12 on: April 11, 2018, 08:18:33 PM »
According to SA Water website Chloramines are only used in water which is piped over long distances and the preferred disinfectant is straight chlorine because it dissipates fast where chloramines do not.

A quick call to SA Water will tell what they use for your location.
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Offline NigeP62

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Re: Chlorine removal from water
« Reply #13 on: April 11, 2018, 08:32:15 PM »
Link to water quality reports by postcode.
Also gives chlorination method.
https://www.sawater.com.au/community-and-environment/water-quality/in-your-area-whats-in-your-water

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Offline Jack of all biers

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Re: Chlorine removal from water
« Reply #14 on: April 12, 2018, 12:29:36 AM »
Thanks for that Nige, I was under the misapprehension that chloramines were used in metro areas too.  Looks like chinese whispers got me.

Offline Mark D Pirate

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Re: Chlorine removal from water
« Reply #15 on: April 12, 2018, 04:24:56 AM »
I was told we did have chloramine in our metro supply ....the man was trying to sell me a filter system though so I should have referred back to SA water
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