Category Archives: Airlocks

Brew Hardware – The Cold Crash Guardian – No Oxygen Cold Crash Blowoff – in stock for $18.99

cold crash guardian

The Cold Crush Guardian via Brew Hardware

From Brew Hardware: “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.”

More Info

From the product description, check product page for current description, price and availability:

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 hose barb splice fitting that you can insert into the stopper in order to get the tee further away from your fermenter if necessary.

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.

The barbs on the tee that insert into your fermenter are 3/8″ OD. These will fit typical openings designed for airlocks including bucket lid grommets, the larger nipple on a carboy cap, and drilled rubber stoppers.

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.

 

  • Availability of this has been touch and go at best.
  • As of this posting, it’s available again and selilng for $18.99.  Stock is limited. If you’re interested in this, I’d suggest purchasing sooner rather than later.

COLD CRASH GUARDIAN – NO OXYGEN COLD CRASH BLOWOFF

Price, promotions and availability can change quickly Please note that product prices and availability are subject to change. Prices and availability were accurate at the time this post was published; however, they may differ from those you see when you visit the product page.  Check the product page for current price, description and availability

Related: Yeast: The Practical Guide to Beer Fermentation & Best Sellers in Lab Erlenmeyers – via Amazon | StirStarter Stir Plate | Yeast Starters and Fermentation Resource Page

More: Recent Great Deals

Hands on Review: Kegland BlowTie Diaphragm Spunding Valve! – new section BlowTie as part of DIY Builds

A Spunding Valve allows you to maintain a set pressure. If pressure in the vessel exceeds the set point, it is expelled. It generally consists of an adjustable PRV valve, a tee, a gauge and a way to connect to your keg.

Why a Spunding Valve?

There are loads of homebrew related applications for a Spunding valve ranging from pressurized ferementation to naturally carbonating to fixing over carbonated beers and lots more.  Check out our resource post on the subject.  It’s arguably the go-to resource on the Internet on the subject

Hands on Review Kegland BlowTie Spunding Valve

The BlowTie Spunding Valve assembly consists of the BlowTie, a DuoTight Tee Fitting, a DuoTight to flare fitting, a DuoTight pressure gauge and two small pieces of EVABarrier Tubing.

Here’s a look at each component…


Compare Prices, Review Continues Below:

Parts lists for putting this together on your own can be found toward the end of this review


The BlowTie is the heart of this build.  It has DuoTight Push to Connect connections on both side as well as an adjustment knob to set pressure. Continue reading

Inline CO2 Regulator [control each keg separately] – on sale for $4.99 + free opener offer

william's brewing inline regulatorInline Regulator via William’s Brewing.  About: “This in line regulator features 1/4″ hose barbs, and can be adjusted with a flat head screwdriver. It can reduce incoming pressure from 150 PSI to 1 PSI. It is very handy to use when you want to use a single output C02 regulator in a draft system, but supply different kegs with different dispensing pressures. 4.75″ long with included brass hose barbs installed.”  The product page has a video with more info.

This is basically an inline secondary regulator.  You still need a primary regulator attached to your CO2 tank.  The idea is, you set the primary to the highest pressure you will use (without exceeding specifications of any component of your system) and then use these regulators inline (one per line) to fine tune pressure and carbonation [See: Balancing Your Draft System].  As an example, you could set your primary to 25 PSI for faster force carbonation and set each line to a different pressure based on desired carbonation level.

  • This is awesome… Review and Hacks… ReviewDial in w/SpundingUse for portable serving!
  • As of this posting, William’s Brewing has this on sale for just $4.99.
  • Shipping is free or reasonably priced flat rate to addresses in the lower 48 states depending on your order size for most items.
  • Get a Free Bottle Cap Gun Opener: William’s Brewing is giving away a free cap gun bottle opener with orders of $40 or more.  These both open bottles and shoot bottle caps.  Just use coupon code CAPGUN and it will be automatically added at checkout.

IN LINE REGULATOR

Price, promotions and availability can change quickly.  Please note that product prices and availability are subject to change. Prices and availability were accurate at the time this this post was published; however, they may differ from those you see when you visit the product page.  Check the product page for current price, description and availability.

Also: Kegerator Tips & Gear | Keg Repair Part #s | Recent Keg Finds

Our Top Draft Resources

 

Visit William’s Brewing – Web Only Clearance Sale

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12 Food Grade Silicone Airlock Grommets – $7.99 + free shipping

12 QRP PLASTIC LID AIRLOCK GROMMETS 1/16" Groove White Food Grade Silicone for fermenting in Mason Jars ~ Bulk Quantities Available

12 White Silicone Grommets.  BPA Free, made from food grade silicone.  Insert into a 9/16″ hole.


From the product description, check product page for current description, price and availability:

  • ALL QRP® parts and products are BPA-free USDA Food Grade Compliant and are produced by a reputable food container manufacturer.
  • Includes 12 White Silicone GROMMETS fit any brand Mason jar plastic caps (1/16″ groove). THE 1/16″ GROOVE IS TOO NARROW FOR GLASS LIDS. Grommet easily inserts into 9/16″ lid hole (1/2″ may be too tight, pushing the airlock into the lid may cause the lid to crack; 5/8″ may cause a loose fit for the grommet). Grommet center hole is 3/8″ and is the standard size for Fermentation Airlocks.
  • QRP GROMMETS are made of USDA Food Grade BPA-free Compliant White Silicone and produced by a reputable food container manufacturer.

Use to add an airlock port to a container of your choosing.  I know of several grommet offerings, most don’t claim to be food grade.  That’s probably not a big deal considering that most of the time this gets little to no contact with your beer.  Having said that, it’s nice to have a food grade option.

3/24/20 2 AM Central:These are selling for $7.99. Shipping to most US addresses also is free. Prices, shipping and availability can change quickly. Please note that product prices and availability are subject to change. Prices and availability were accurate at the time this this post was published; however, they may differ from those you see when you visit Amazon. Check the product page for current price, description and availability.

12 QRP PLASTIC LID AIRLOCK GROMMETS 1/16″ Groove White Food Grade Silicone


Related: Yeast: The Practical Guide to Beer Fermentation & Best Sellers in Lab Erlenmeyers – via Amazon | StirStarter Stir Plate | Yeast Starters and Fermentation Resource Page

More: Recent Amazon Finds

12 x Silicone Airlock Grommets – $6.99 + free prime ship

12 PCS Airlock Grommet, Fermenter Lid Grommet,Silicone Grommets For Mason Jars/Airlock/Straws/Plastic Bucket Fermenter Lids,5/8" OD & 3/8" ID (fermenter grommet)

12 PCS Airlock Grommet, Fermenter Lid Grommet,Silicone Grommets For Mason Jars/Airlock/Straws/Plastic Bucket Fermenter Lids,5/8″ OD & 3/8″ ID (fermenter grommet)

More Info

From the product description, check product page for current description, price and availability:

  • Food Grade Silicone ★ The airlock grommet is made of thicker silicone and PBA free. It features a higher quality. Also our silicone grommet is high-temperature resistant. It can withstand Not over 300 ℉
  • Good Sealing ★ This silicone grommet work with the airlock, it makes a perfect air-tight seal to keep bugs/bacteria/ oxygen from getting in your fermenter.That will help maintain the ferment for a longer period
  • Fit For 5/8″ Hole ★ External diameter is 5/8″(15.93mm). Internal diameter is 3/8″(9mm). Height is 0.3 inch(8mm). Need to drill a 5/8″ hole in a fermenter lid. And then this airlock grommet is easily insert in lid hole
  • Widely Application ★ The fermenter grommets are great for airlocks & plastic buckets lids & straws.Use these silicone grommet to convert mason jars to air locked fermentation vessels

 

Use to add an airlock port to a container of your choosing.

3/23/20 2 PM Central: These are selling for just $6.99.  Shipping is also free to many US addresses with Prime Membership [Try Prime for Free] or a qualifying orderPrices, shipping and availability can change quickly. Please note that product prices and availability are subject to change. Prices and availability were accurate at the time this post was published; however, they may differ from those you see when you visit Amazon. Check the product page for current price, description and availability. Also: Recent Amazon Finds and Amazon Fillers Resource Page 

12 PCS Airlock Grommet, Fermenter Lid Grommet,Silicone Grommets For Mason Jars/Airlock/Straws/Plastic Bucket Fermenter Lids,5/8″ OD & 3/8″ ID (fermenter grommet) – note that multiple variations of this product may be available, as such a different version may appear at this link


Related: Yeast: The Practical Guide to Beer Fermentation & Best Sellers in Lab Erlenmeyers – via Amazon | StirStarter Stir Plate | Yeast Starters and Fermentation Resource Page

More: Recent Amazon Finds

12 x Three Piece Airlocks – $13.09… $1.09 each + free shipping

Plastic Airlock (pack of 12)

12 pack Three Piece Airlock – Home Brew Ferment – for Beer, Wine or Kombucha

As if this posting, this is eBay offering is selling for just $13.09. Shipping is also free to many US addresses.

Plastic Airlock (pack of 12)

Related: Yeast: The Practical Guide to Beer Fermentation & Best Sellers in Lab Erlenmeyers – via Amazon | StirStarter Stir Plate | Yeast Starters and Fermentation Resource Page

Prices, shipping and availability can change quickly. Please note that product prices and availability are subject to change. Prices and availability were accurate at the time this this post was published; however, they may differ from those you see when you visit the product page. Check the product page for current price, description and availability.

More: Recent Great Deals

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20 x Airlock Grommets – $5.75

fermenter grommets

20 Airlock grommets.  Use for replacements to add an airlock port to the vessel of your choice.

As if this posting, this is eBay offering is selling for just $5.75.  Shipping is an additional cost.

Beer Grommets 20- 1/2″x3/8 For Airlock Wine Beer Making Kit Lid

Related: Yeast: The Practical Guide to Beer Fermentation & Best Sellers in Lab Erlenmeyers – via Amazon | StirStarter Stir Plate | Yeast Starters and Fermentation Resource Page

Prices, shipping and availability can change quickly. Please note that product prices and availability are subject to change. Prices and availability were accurate at the time this this post was published; however, they may differ from those you see when you visit the product page. Check the product page for current price, description and availability.

More: Recent Great Deals

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New Mini and Medium Airlocks from MoreBeer – designed for tight fermentation spaces

Airlock - 2 Piece (Mini) FE363

Airlock – 2 Piece (Mini) from MoreBeer

More Info

From the product description, check product page for current description, price and availability:

Our mini and medium 2-piece airlocks are a great option when a single inch could make or break fitting your carboy into a fermentation chamber. The airlock breaks down into 2-pieces for easy cleaning. Instead of a floating center piece, like standard 3-piece airlocks, the center piece is molded into the lid. One less piece to clean and misplace!

Another cool feature of this 2-piece airlock is that 1/2″ ID tubing will fit onto the center post for use as a blowoff. This can be handy if you have a really active ferment that is blowing out the top of your fermenter.

  • Holds approximately 0.4 fl oz (12 ml)
  • Chamber – 1-1/2″ tall x 1-3/8″ diameter
  • Stem – 1″ long
  • Stopper not included

 

Related: Yeast: The Practical Guide to Beer Fermentation & Best Sellers in Lab Erlenmeyers – via Amazon | StirStarter Stir Plate | Yeast Starters and Fermentation Resource Page

MoreDeals! at MoreBeer:

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Looking for a MoreBeer Deal? – Today’s Deal of the Day | Sale Items | MoreBeer Deals

Introducing: Jaybird KRAUSEN CATCHER for Wide Mouth Canning Jars

Jaybird KRAUSEN CATCHER with Grommet for Wide Mouth Canning Jars

Jaybird KRAUSEN CATCHER with Grommet for Wide Mouth Canning Jars

More Info

From the product description, check product page for current description, price and availability:

  • Prevent plugged airlocks or blow-off tubes during fermentation!
  • No evaporated air lock! No backflush of sanitizer into your product!
  • Think of this as a GIANT airlock… with all of the benefits and none of the draw-backs of small plastic airlocks!
  • DAISY CHAIN this with our 4 NIPPLE version to create a CO2 harvesting, back flow-preventing airlock
  • Made in USA by NorCal Brewing Solutions

Jaybird Krausen Catcher with Grommet for Ball, Kerr, or Mason Wide-Mouth Jar. The ultimate airlock enhancement / blow-off tube! Fixes ALL kinds of airlock issues by providing sturdy hose attachments, a lid-sealed containment system, and the ability to attach 1/2″ hoses to its 2 tube connections, plus a 3-piece or “S” shaped airlock to its grommet! Think of this as a GIANT airlock / blow-off tube… with all of the benefits and none of the draw-backs! You need a couple of feet of 1/2″ inner diameter tubing, a 3-piece or “S” shaped airlock, and a wide mouth Kerr, Ball, or Mason jar (not included) in the 16, 32, or 64 ounce size. DAISY CHAIN THIS WITH OUR 4 NIPPLE VERSION OF THE KRAUSEN CATCHER to create a CO2 harvesting, back flow-preventing airlock! USAGE INSTRUCTIONS: 1. Fill a wide-mouth canning jar with the proper amount and mix of sanitizing solution. 2. Place a length of tubing over one of the “inside” nipples of the Krausen Catcher. Tube length should be long enough to “almost” reach the bottom of the canning jar once canning jar lid is attached to jar. 3. Place Krausen Catcher on canning jar and tighten the canning jar’s lid over the Catcher. 4. Attach a half-inch inner diameter hose over the same-side outside nipple on the Krausen Catcher. 5. Run the other end of the hose to the CO2 exit port of your fermenter. 6. Fill a 3-Piece or “S” shaped “double bubble” airlock with sanitizer solution. 7. Attach airlock to grommet on Krausen Catcher. CHARACTERISTICS and SPECIFICATIONS: All metal components are 304 Stainless Steel. 1/2″ tubing connects to the 2 nipples. Any standard 3/8” diameter airlock attaches to grommet. Works with any “wide mouth” (3-inch inner opening) Ball, Kerr, or Mason jar. Jar, screw lid, airlock, hose, etc. are for illustration purposes only (not included). THE LAST PICTURE: The Krausen Catcher with Grommet is shown in the left half of the picture, connected to a canning jar and airlock in a CO2 HARVESTER configuration.


 

Jaybird KRAUSEN CATCHER with Grommet for Wide Mouth Canning Jars – note that multiple variations of this product may be available, as such a different version may appear at this link


More: Recent Amazon Finds

FIVE x Three Piece Airlocks – $7.53, $1.50 each + free prime ship

3 Piece Plastic Airlock (Sold in sets of 3)

Set of 5 Three Piece Airlocks.  Use on your fermenter to help prevent outside air from backflowing.

3/14/20 2 PM Central: These are selling for $7.53.  That figures to about $1.50 each.  Shipping is also free to many US addresses with Prime Membership [Try Prime for Free] or a qualifying order. Prices, shipping and availability can change quickly. Please note that product prices and availability are subject to change. Prices and availability were accurate at the time this post was published; however, they may differ from those you see when you visit Amazon. Check the product page for current price, description and availability. Also: Recent Amazon Finds and Amazon Fillers Resource Page 

3 Piece Airlock (Qty. 5)


Related: Yeast: The Practical Guide to Beer Fermentation & Best Sellers in Lab Erlenmeyers – via Amazon | StirStarter Stir Plate | Yeast Starters and Fermentation Resource Page

More: Recent Amazon Finds