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Bev-Seal Ultra keg beverage tubing with liner, 3/16 X 5/16 (per foot) Bev-Seal Ultra keg beverage tubing with liner, 3/16 X 5/16 (per foot)

High Quality Keg Beverage Tubing

Our Price: $0.39

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Tube Compression Fitting Plug, All Sizes Tube Compression Fitting Plug, All Sizes

for tube ODs 1/4", 3/8", 1/2", and 5/8".

Our Price: $1.49
Cascade 1oz Cryohop Pelitized LUPULN2 Cascade 1oz Cryohop Pelitized LUPULN2

CRYO HOP Pellets

Our Price: $3.75
Stir Bar, Teflon Coated 1.25" x 5/16" Stir Bar, Teflon Coated 1.25" x 5/16"

Yeast Starter Gear

Our Price: $3.99

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Fermonster Solid Lid Fermonster Solid Lid

Lid Only

Our Price: $3.99
Citra 1oz Cryohop Pelitized LUPULN2 Citra 1oz Cryohop Pelitized LUPULN2

CRYO HOP Pellets

Our Price: $4.15
Ball Lock Keg QD Jumper Post for Cleaning Ball Lock Keg QD Jumper Post for Cleaning

A Brewhardware.com Exclusive!

Our Price: $6.99
Sale Price: $5.99
Savings: $1.00

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Female Flare (FFL) to Male Beer Thread Adapter SANKE to Ball Lock Female Flare (FFL) to Male Beer Thread Adapter SANKE to Ball Lock

Flare to Beer Thread

Our Price: $7.99
Sale Price: $5.99
Savings: $2.00

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Camlock Quick Disconnects  - Double Ended Males Camlock Quick Disconnects - Double Ended Males

Double ended camlock Male Splice

Our Price: $6.49

(5)
Pull Through Solderable Bulkhead 1/2" M/M NPT Pull Through Solderable Bulkhead 1/2" M/M NPT

Pull Through Solder Bulkhead

Our Price: $7.25

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Omega Yeast Voss Kveik OYL-061 Omega Yeast Voss Kveik OYL-061

Omega Labs Yeast

Our Price: $8.50
Omega Yeast Tropical IPA OYL-200 Omega Yeast Tropical IPA OYL-200

Omega Labs Yeast

Our Price: $8.50
Omega Yeast Hornindal Kveik OYL-091 Omega Yeast Hornindal Kveik OYL-091

Omega Labs Yeast

Our Price: $8.50
1-1/2" Socket Tool for Heating Elements 1-1/2" Socket Tool for Heating Elements

element Socket

Our Price: $9.99
Ball Lock Keg Post Thread 19/32"-18 x 1/4" OD Tube Compression Ball Lock Keg Post Thread 19/32"-18 x 1/4" OD Tube Compression

Compression to 19/32"-18 Ball Lock Post Threads

Our Price: $11.99
Ball Lock Keg Post Thread 19/32"-18 x 3/8" OD Tube Compression Ball Lock Keg Post Thread 19/32"-18 x 3/8" OD Tube Compression

Compression to 19/32"-18 Ball Lock Post Threads

Our Price: $11.99
Cold Crash Guardian - No Oxygen Cold Crash Blowoff Cold Crash Guardian - No Oxygen Cold Crash Blowoff

Cold crash what? It's the Cold Crash Guardian! Available for order July 19th.

If you ferment in a temp controlled environment and enjoy the benefits of cold crashing, the inevitable problem is that the cooling in the fermenter creates a vacuum. The worst case scenario is that the liquid from your airlock or blowoff container gets sucked back into the beer and some portion of air from within the refrigerator is also drawn in. This has both contamination and oxidation effects on the beer even if you haven't noticed it yet. If you've jumped on the New England IPA craze, even tiny amounts of oxygen will destroy that beer.

There are very few discussions being had on this topic and when it is brought up, those concerned are often told not to worry about it or offered solutions that don't work. Scroll to the bottom to read about some of these misguided solutions.

What you get:
This simple but effective kit includes a 1 gallon expandable bladder connected to a tee. The tee is pressed into a hole in a drilled stopper, grommet or carboy cap (you provide) and the top of the tee connects to an included hose that is dangled into a container of starsan solution (you provide). We include 4 feet of tubing which can be cut as necessary. We also include a short piece of stainless steel tubing to weigh down the end of the tubing in your starsan container to keep the hose in place.

How it works:
As your wort ferments, the CO2 inflates the bag full, then excess pressure is vented through the blowoff tube and bubbles through the starsan in your catch container. If yeast and trub is blown through the assembly, it will collect in the starsan container as with any other blowoff setup. If any debris makes it into the bladder, which is unlikely, it can easy be cleaned out by removing the cap from the bladder.

Once fermentation is over and you set your fermentation temp controller to COLD, the vacuum created in the fermenter will start to draw the CO2 out of the inflated bag as necessary. In most cases, the bag will deflate about a 3rd of the way for 5 gallon batches and half way for 10 gallon batches. No starsan will draw up the tubing. More importantly, only CO2 will be drawn back into the headspace. No oxygen, no starsan, no bacteria.

Typical solutions offered on brewing forums:

I just plug up my fermenter so that the vacuum cannot draw anything in.
If your fermenter can hold up to the vacuum without damage or sucking your stopper down the hole, the problem is that you will eventually need to unseal it. Once the stopper is removed, oxygen rich air gets drawn in. Also don't discount how damaging vacuum can be. You can crease PET fermenters this way. You can also implode stainless tanks.

I just use an S-style airlock because it will pass gas both directions without draining starsan back in.
The only problem this prevents is the contamination of beer with whatever liquid you have in the airlock. It does not stop oxygen.

Who cares if Starsan is drawn into the beer, it's safe enough to drink.
Wow. Most people immediately understand the lapse of judgement here. There are endless safe things you can add to your beer that would make it taste bad.

I never had a problem with contamination or oxidation.
Some beers are more or less susceptible to off flavors/oxidation problems and some people have higher thresholds for detecting those problems. If you are completely happy with your beer despite less than ideal practices, this product is not for you.

I hook up my CO2 tank and set it to less than 1 PSI to push in CO2 when the vacuum is formed.

This is indeed how the pros handle it and of course it works. At a homebrew scale there are a few things to keep in mind. First you do need a CO2 tank, a good regulator that doesn't drift, and a fermenter that is 100% sealed. If you have even a slow leak in the fermenter seals, kiss that whole tank of CO2 goodbye. If your regulator drifts even a couple PSI (due to being borrowed out of your cold kegerator), you can compromise your fermenters due to overpressurization.

Our Price: $11.99
Ball Lock Keg Post Thread 19/32"-18 x 1/2" OD Tube Compression Ball Lock Keg Post Thread 19/32"-18 x 1/2" OD Tube Compression

Compression to 19/32"-18 Ball Lock Post Threads

Our Price: $12.99
Fermonster 1 Gallon PET Widemouth Fermenter Fermonster 1 Gallon PET Widemouth Fermenter

Smooth sided PET fermenter

Our Price: $13.50
Ball Lock Keg Post Thread 19/32"-18 x 5/8" OD Tube Compression Ball Lock Keg Post Thread 19/32"-18 x 5/8" OD Tube Compression

Compression to 19/32"-18 Ball Lock Post Threads

Our Price: $13.99
Stainless Oxygen (O2) .5 Micron Diffusion Stone with 1/4" MFL Stainless Oxygen (O2) .5 Micron Diffusion Stone with 1/4" MFL

For efficient dissolving of oxygen in wort or CO2 in beer

Our Price: $16.99
Sale Price: $14.99
Savings: $2.00

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Adjustable Pressure Relief Valve Adjustable Pressure Relief Valve

Spunding

Our Price: $14.99

(4)
Pull Through Solderable Bulkhead with Edge Pickup Kit Pull Through Solderable Bulkhead with Edge Pickup Kit

Bulkhead for Whirlpool Pickup

Our Price: $21.00
Topsflo DC Brewing Pump Power Supply Only Topsflo DC Brewing Pump Power Supply Only

replacement part

Our Price: $22.00
Fermonster 3 Gallon PET Widemouth Fermenter Fermonster 3 Gallon PET Widemouth Fermenter

Smooth sided PET fermenter

Our Price: $22.50
True Weldless Bulkhead - With 2pc Ball Valve and Diptube True Weldless Bulkhead - With 2pc Ball Valve and Diptube

Bulkhead and Valve

Our Price: $34.99
Sale Price: $29.99
Savings: $5.00

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Stainless Steel False Bottom for Brew In a Bag (BIAB) - 13" Diameter Stainless Steel False Bottom for Brew In a Bag (BIAB) - 13" Diameter

Keep the bag off the bottom

Our Price: $31.99

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1.5 TC Rotating Racking Arm 1.5 TC Rotating Racking Arm

Triclover (TC) clamp

Our Price: $39.00

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Conical to Keg Pressure Transfer Kit (NPT valves) Conical to Keg Pressure Transfer Kit (NPT valves)

Pressure Transfer

Our Price: $39.00
Conical to Keg Pressure Transfer Kit (TC valves) Conical to Keg Pressure Transfer Kit (TC valves)

Pressure Transfer

Our Price: $39.00
Stainless Steel False Bottom for Brew In a Bag (BIAB) - 17.5" Diameter Stainless Steel False Bottom for Brew In a Bag (BIAB) - 17.5" Diameter

Keep the bag off the bottom

Our Price: $39.99

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spunding valve assembly spunding valve assembly

Spunding

Our Price: $39.99

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Topsflo DC Brewing Pump Replacement Head Only Topsflo DC Brewing Pump Replacement Head Only

replacement head

Our Price: $45.00
Topsflo DC Brewing Pump Motor Only Topsflo DC Brewing Pump Motor Only

replacement part

Our Price: $69.00
   
 
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