mcnewcp

Recipes 

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/shoppingcart/products/Silicone-Waterless-Airlock.html

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Better Beer Project

Primary: French/American Farmhouse, ECY20 Lambic
Secondary: Flanders Red
Kegged: Brett Cust Citra Pale Ale, Galaxy/HBC342 Wheat IPA
Bottled: Falconers Flight Farmhouse, 1 yr Blueberry Sour, 2 yr Berliner Weisse

acidrain

Recipes 

I don't know about those, but why don't you use the two-piece?

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Keg #2: Cascadian Stout
Keg #3: Brandon O Graff

Fermenter #1 RHESB 6.1
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bamnq6

Recipes 

I've heard that S-Shaped Airlocks http://morebeer.com/view_product/16599/103702/Airlock_-_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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Primary: Munich Helles (Diacetyl Rest)
Secondary: Air
Kegged: Honey Porter
Bottles: Nada (somebody drank 'em all)
On Deck: Malty Brown, Apfelwien, Pale Ale

mcnewcp

Recipes 

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.

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Better Beer Project

Primary: French/American Farmhouse, ECY20 Lambic
Secondary: Flanders Red
Kegged: Brett Cust Citra Pale Ale, Galaxy/HBC342 Wheat IPA
Bottled: Falconers Flight Farmhouse, 1 yr Blueberry Sour, 2 yr Berliner Weisse

BrewandWineSupply

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I think he means these:http://brewandwinesupply.com/index.php?route=product/product&path=25_29&product_id=240

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mcnewcp

Recipes 

Oh ok, these are the ones I currently use and they definitely pull in sanitizer.

__________________
Better Beer Project

Primary: French/American Farmhouse, ECY20 Lambic
Secondary: Flanders Red
Kegged: Brett Cust Citra Pale Ale, Galaxy/HBC342 Wheat IPA
Bottled: Falconers Flight Farmhouse, 1 yr Blueberry Sour, 2 yr Berliner Weisse

Hermit

Recipes 

So it would implode my carboy?

mcnewcp

Recipes 

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.

__________________
Better Beer Project

Primary: French/American Farmhouse, ECY20 Lambic
Secondary: Flanders Red
Kegged: Brett Cust Citra Pale Ale, Galaxy/HBC342 Wheat IPA
Bottled: Falconers Flight Farmhouse, 1 yr Blueberry Sour, 2 yr Berliner Weisse

Bierliebhaber

Recipes 

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.

Hermit

Recipes 

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.