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Old 02-11-2013, 08:33 PM   #1
mcnewcp
 
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I was just wondering if any of you have tried these and what your thoughts are on them. I'm looking for a way to keep my long term brews from pulling in sanitizer every time they see a small temp fluctuation.

http://www.rebelbrewer.com/shoppingc...s-Airlock.html
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Old 02-11-2013, 10:05 PM   #2
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I don't know about those, but why don't you use the two-piece?
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Old 02-11-2013, 10:37 PM   #3
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I've heard that S-Shaped Airlocks http://morebeer.com/view_product/165...ock_-_S-Shaped can gurgle both forwards and backwards (in and out)

I just picked some up to try...

I had a recent Pale ale pull in about a pint of Sanitizer out of my blow-off during cooling. I was a very sad panda
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Old 02-11-2013, 10:44 PM   #4
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Quote:
Originally Posted by acidrain View Post
I don't know about those, but why don't you use the two-piece?
I'm not sure what you mean by two piece, do you mean the s-shaped ones?

Quote:
Originally Posted by bamnq6 View Post
I've heard that S-Shaped Airlocks http://morebeer.com/view_product/165...ock_-_S-Shaped can gurgle both forwards and backwards (in and out)

I just picked some up to try...

I had a recent Pale ale pull in about a pint of Sanitizer out of my blow-off during cooling. I was a very sad panda
If it gurgles backwards though, wouldn't it just be pulling in air, meaning more oxygen and a higher chance for contamination? The waterless silicone ones will actually hold a suction if they start to pull backwards.
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Old 02-11-2013, 10:49 PM   #5
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Quote:
Originally Posted by mcnewcp View Post
I'm not sure what you mean by two piece, do you mean the s-shaped ones?
I think he means these:http://brewandwinesupply.com/index.p...product_id=240
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Old 02-11-2013, 11:09 PM   #6
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Quote:
Originally Posted by BrewandWineSupply View Post
Oh ok, these are the ones I currently use and they definitely pull in sanitizer.
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Old 02-11-2013, 11:41 PM   #7
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Quote:
Originally Posted by mcnewcp View Post
I'm not sure what you mean by two piece, do you mean the s-shaped ones?



If it gurgles backwards though, wouldn't it just be pulling in air, meaning more oxygen and a higher chance for contamination? The waterless silicone ones will actually hold a suction if they start to pull backwards.
So it would implode my carboy?

 
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Old 02-11-2013, 11:56 PM   #8
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Quote:
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So it would implode my carboy?
Ha, good word. It depends on how much you cooled it down. It would take quite a bit of suction pressure to break a glass carboy, but I'd rather be safe than sorry when it comes to losing an entire batch. When I cold crash I usually just use a piece of sanitized foil. I think the suction capability of the waterless silicone are more intended for small, unintentional temperature fluctuations.
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Old 02-11-2013, 11:56 PM   #9
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Quote:
Originally Posted by mcnewcp View Post

If it gurgles backwards though, wouldn't it just be pulling in air, meaning more oxygen and a higher chance for contamination? The waterless silicone ones will actually hold a suction if they start to pull backwards.
Any air that is sucked in will be FAR less than the exposure that occurs when taking a hydro sample. The point is no water sucked in. Also, the air that may enter is at least minimally filtered by the water. The point of the air lock is only partially for sanitation. The point is to guard against prolonged oxygen diffusion.

 
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Old 02-12-2013, 12:03 AM   #10
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Quote:
Originally Posted by mcnewcp View Post
Ha, good word. It depends on how much you cooled it down. It would take quite a bit of suction pressure to break a glass carboy, but I'd rather be safe than sorry when it comes to losing an entire batch. When I cold crash I usually just use a piece of sanitized foil. I think the suction capability of the waterless silicone are more intended for small, unintentional temperature fluctuations.
I've sucked jars down pretty far with vacuum pumps but how often do we hear about a carboy going with very little provocation? At some point you still have to open it anyhow. I use star san in my air lock. Haven't lost a batch yet and I do cold crash.

 
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