Category Archives: Airlocks

(5) Three Piece Airlocks – $6.50 – $1.30 Each + Free Shipping

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.

11/7/18 10 PM Central: These have dropped to just $6.50. Shipping is also free to many US addresses. 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.

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

Pinned: Early Bird Black Friday Deals at Amazon – Submit a Tip if you see beer gear

More: Recent Amazon Finds

Pin Lock Users: A Ready Made Spunding Valve for You for $33.99 + free shipping

Pin Lock Adjustable Pressure Relief Valve w Gauge 15psi Spunding

Pin Lock Adjustable Pressure Relief Valve w Gauge 15psi Spunding

A Spunding Valve has lots of applications…

Spunding Valve Uses
  1. Pressurized fermentation.  Ferment in a 5 or 10 gallon corny keg and use your Spunding Valve instead of an airlock.  This allows you to ferment at your desired pressure.
  2. Dry hop under pressure.  This allows you to dry hop earlier while reducing oxygenation.  Active yeast are more likely to metabolize oxygen that’s introduced during dry hopping during active fermentation.  Since CO2 is not exiting beer as vigorously under pressure, wanted compounds, flavors and aromas are more likely to stay in your beer under pressure.
  3. Naturally and accurately carbonate beer right in the keg.
  4. An airlock replacement.  Keep the valve wide open for non-pressurized fermentations.  Only do this if you have plenty of head space.  This wouldn’t make a great blow off tube.
  5. Keg to keg transfers.  Use the Spunding Valve to allow excess gas to exit the receiving keg as you transfer under pressure.  Helps you achieve a slow, controlled and pressurized transfer.
  6. Fix over-carbonated beers.  Use the same general process as for carbonation (skipping the addition of fermentable sugar).  Use a carbonation chart to determine proper pressure for the temperature the keg is at.  The Spunding Valve allows excess pressure to vent until the new carbonation level is achieved.  You can agitate the keg to fix carbonation more quickly.
  7. Test for keg leaks.  Pressurize your keg to serving pressure.  Put the Spunding Valve on (with the pressure set well above your serving PSI) and note the reading.  The gauge should remain steady.  If pressure drops, you know you have a keg leak.  It’s worth noting that this checks the entire keg including gas body o-ring.  That spot is hard to check and other way as it’s only in function when the gas QD is on.  When the gas QD is on… it’s difficult to spray and check for bubbles underneath the gas QD.  Thanks to Scott Janish for this tip!
  8. As an airlock for long term aging of beers.  Airlocks can run dry over time.  A Spunding Valve will not.

 

Lots more about Spunding Valves on our Spunding Valve Build Resource Post


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

These are purpose built high quality valves by BrewMaster. Not just hardware store pieces like the competitors.

Two functions in one great piece of hardware!

The Pin Lock QD Adjustable Pressure Valve W/Gauge relieves pressure while filtering from one keg to another. At the same time it gives you the ability to read the pressure in the receiving keg. And Ferment under desired pressure!

  1. Gauge reads 0~15 PSI.
  2. The farthest end away from the Pin lock disconnect is how you adjust the pressure.
  3. Simply turn the ap on way of the other until the desired pressure is maintained.
  4. You can also naturally carbonate your beer in a keg without have to worry about oer carbonating.
  5. This Ball Lock Adjustable Pressure valve with gauge allows you to relieve pressure while filtering your beer from one keg to another a lowing a closed system.

As if this posting, this is eBay offering is selling for just $33.99. Shipping is also free to many US addresses.  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.

Pin Lock Adjustable Pressure Relief Valve w Gauge 15psi Spunding

Top Post: Build a Spunding Valve! – How and Why

Related: What’s the Difference Between Ball Lock Kegs and Pin Lock Kegs?

Pinned: Early Bird Black Friday Deals at Amazon – Submit a Tip if you see beer gear

More: Recent Great Deals

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Back in Stock – New from Brew Hardware – the Cold Crash Guardian – No Oxygen Cold Crash Blowoff

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
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.

 

COLD CRASH GUARDIAN – NO OXYGEN COLD CRASH BLOWOFF

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

Pinned: Early Bird Black Friday Deals at Amazon – Submit a Tip if you see beer gear

More: Recent Great Deals

12 x Three Piece Airlocks – $15.49, $1.29 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 $15.49. Shipping is also free to many US addresses.  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.

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

Pinned: Early Bird Black Friday Deals at Amazon – Submit a Tip if you see beer gear

More: Recent Great Deals

12 Food Safe Silicone Airlock Grommets AND 12 Stoppers

Homebrew Guys Fermentation Grommets Pack of 12. Food Grade BPA-Free White Silicone Rubber Complete with 12 Stoppers. Best for Airlocks, Fermenting in Jars and Buckets. 3/8" Center for 1/2" Hole

Homebrew Guys Fermentation Grommets Pack of 12. Food Grade BPA-Free White Silicone Rubber Complete with 12 Stoppers. Best for Airlocks, Fermenting in Jars and Buckets. 3/8″ Center for 1/2″ Hole


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

  • PREMIUM QUALITY , durable and hygienic grommets complete with stoppers.Great for airlocks to vent off Carbon Dioxide and keep Oxygen out from spoiling your food.Suitable for 1/2″ drilled holes
  • MULTIPLE USES – Whether you are using them for making alcoholic beverages, making Kimchi, Sauerkraut or your own vinegar, you will love these.
  • EASY TO CLEAN – Simply wash them in warm soapy water, rinse and dry
  • FOOD SAFE – Made from BPA-Free materials, you can rest assured that your final product will be safe to consume
  • WHAT YOU GET IN THE PACK: 12 x White Grommets + 12 Matching White Stoppers in one plastic bag.

Note from HBF: These are small stoppers designed to fit in these grommets.

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.

Homebrew Guys Fermentation Grommets Pack of 12. Food Grade BPA-Free White Silicone Rubber Complete with 12 Stoppers. Best for Airlocks, Fermenting in Jars and Buckets. 3/8″ Center for 1/2″ Hole


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

Pinned: Early Bird Black Friday Deals at Amazon – Submit a Tip if you see beer gear

More: Recent Amazon Finds

1/4″ Male NPT to 1/4″ Female Flare + Make a Spunding Valve

Eaton Weatherhead 9100X4X4 Carbon Steel SAE 37 Degree (JIC) Flare-Twin Fitting, Swivel, Adapter, 1/4" NPT Male x 1/4" JIC Female

Eaton Weatherhead 9100X4X4 Carbon Steel SAE 37 Degree (JIC) Flare-Twin Fitting, Swivel, Adapter, 1/4″ NPT Male x 1/4″ JIC Female.  Adapts 1/4″ NPT male end to 1/4″ JIC 37-degree flare female swivel.  Made from carbon steel.

This fitting is featured in our Spunding Valve Build.   cln_tn_spundingA Spunding Valve allows you to ferment under pressure, naturally and precisely carbonate in the keg, fix over-carbonated beers and more.See: [Build a Spunding Valve].

Note: If you want to replicate my build, make sure to choose the 1/4″ NPT x 1/4″ JIC size.  The product page may display other sizes

Eaton Weatherhead 9100X4X4 Carbon Steel SAE 37 Degree (JIC) Flare-Twin Fitting, Swivel, Adapter, 1/4″ NPT Male x 1/4″ JIC Female

Pinned: Early Bird Black Friday Deals at Amazon – Submit a Tip if you see beer gear

More: Recent Amazon Finds

prod:B00BKFXJ0C

Brew Hardware – the Cold Crash Guardian – No Oxygen Cold Crash Blowoff

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
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.

 

COLD CRASH GUARDIAN – NO OXYGEN COLD CRASH BLOWOFF

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

Pinned: Early Bird Black Friday Deals at Amazon – Submit a Tip if you see beer gear

More: Recent Great Deals

1/4″ Male NPT to 1/4″ Female Flare + Make a Spunding Valve – SEE UPDATE

Eaton Weatherhead 9100X4X4 Carbon Steel SAE 37 Degree (JIC) Flare-Twin Fitting, Swivel, Adapter, 1/4" NPT Male x 1/4" JIC Female

Eaton Weatherhead 9100X4X4 Carbon Steel SAE 37 Degree (JIC) Flare-Twin Fitting, Swivel, Adapter, 1/4″ NPT Male x 1/4″ JIC Female.  Adapts 1/4″ NPT male end to 1/4″ JIC 37-degree flare female swivel.  Made from carbon steel.

This fitting is featured in our Spunding Valve Build.   cln_tn_spundingA Spunding Valve allows you to ferment under pressure, naturally and precisely carbonate in the keg, fix over-carbonated beers and more.See: [Build a Spunding Valve].

Note: If you want to replicate my build, make sure to choose the 1/4″ NPT x 1/4″ JIC size.  The product page may display other sizes

10/31/18 2 PM Central: This has been out of stock (other than a short period of availability a couple of weeks ago) for a long, long time.  This is the elusive fitting that I used to build the original option #1 on my Spunding Build post.  As of this posting, it’s available for a scant $3.  Shipping is also free to many US addresses, with a qualifying order, as part of the Amazon’s Add On promotion.  Based on past experience, if you’re interested in this, I’d jump on it sooner rather than later… 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. Also: Recent Amazon Finds and Amazon Fillers Resource Page

Update: Sold Out.  Check product page for current price and availability.  Note: The product page may display other sizes

Eaton Weatherhead 9100X4X4 Carbon Steel SAE 37 Degree (JIC) Flare-Twin Fitting, Swivel, Adapter, 1/4″ NPT Male x 1/4″ JIC Female

Pinned: Early Bird Black Friday Deals at Amazon – Submit a Tip if you see beer gear

More: Recent Amazon Finds

prod:B00BKFXJ0C

Pin Lock Users: A Ready Made Spunding Valve for You + Pin Lock Keg Deal

Pin Lock Adjustable Pressure Relief Valve w Gauge 15psi Spunding

Pin Lock Adjustable Pressure Relief Valve w Gauge 15psi Spunding

A Spunding Valve has lots of applications…

Spunding Valve Uses
  1. Pressurized fermentation.  Ferment in a 5 or 10 gallon corny keg and use your Spunding Valve instead of an airlock.  This allows you to ferment at your desired pressure.
  2. Dry hop under pressure.  This allows you to dry hop earlier while reducing oxygenation.  Active yeast are more likely to metabolize oxygen that’s introduced during dry hopping during active fermentation.  Since CO2 is not exiting beer as vigorously under pressure, wanted compounds, flavors and aromas are more likely to stay in your beer under pressure.
  3. Naturally and accurately carbonate beer right in the keg.
  4. An airlock replacement.  Keep the valve wide open for non-pressurized fermentations.  Only do this if you have plenty of head space.  This wouldn’t make a great blow off tube.
  5. Keg to keg transfers.  Use the Spunding Valve to allow excess gas to exit the receiving keg as you transfer under pressure.  Helps you achieve a slow, controlled and pressurized transfer.
  6. Fix over-carbonated beers.  Use the same general process as for carbonation (skipping the addition of fermentable sugar).  Use a carbonation chart to determine proper pressure for the temperature the keg is at.  The Spunding Valve allows excess pressure to vent until the new carbonation level is achieved.  You can agitate the keg to fix carbonation more quickly.
  7. Test for keg leaks.  Pressurize your keg to serving pressure.  Put the Spunding Valve on (with the pressure set well above your serving PSI) and note the reading.  The gauge should remain steady.  If pressure drops, you know you have a keg leak.  It’s worth noting that this checks the entire keg including gas body o-ring.  That spot is hard to check and other way as it’s only in function when the gas QD is on.  When the gas QD is on… it’s difficult to spray and check for bubbles underneath the gas QD.  Thanks to Scott Janish for this tip!
  8. As an airlock for long term aging of beers.  Airlocks can run dry over time.  A Spunding Valve will not.

 

Lots more about Spunding Valves on our Spunding Valve Build Resource Post


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

These are purpose built high quality valves by BrewMaster. Not just hardware store pieces like the competitors.

Two functions in one great piece of hardware!

The Pin Lock QD Adjustable Pressure Valve W/Gauge relieves pressure while filtering from one keg to another. At the same time it gives you the ability to read the pressure in the receiving keg. And Ferment under desired pressure!

  1. Gauge reads 0~15 PSI.
  2. The farthest end away from the Pin lock disconnect is how you adjust the pressure.
  3. Simply turn the ap on way of the other until the desired pressure is maintained.
  4. You can also naturally carbonate your beer in a keg without have to worry about oer carbonating.
  5. This Ball Lock Adjustable Pressure valve with gauge allows you to relieve pressure while filtering your beer from one keg to another a lowing a closed system.

As if this posting, this is eBay offering is selling for just $33.99. Shipping is also free to many US addresses.  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.

Pin Lock Adjustable Pressure Relief Valve w Gauge 15psi Spunding

Looking for Pin Lock Kegs?  Check out – 4 Pack of Pin Lock Kegs – via Keg Connection

Top Post: Build a Spunding Valve! – How and Why

Related: What’s the Difference Between Ball Lock Kegs and Pin Lock Kegs?

Pinned: Early Bird Black Friday Deals at Amazon – Submit a Tip if you see beer gear

More: Recent Great Deals

rp:plspunding

1/4″ NPT Male x 1/4″ JIC Male Stainless Fitting + Building a Spunding Valve

HFS (R) Twin Fitting, Adapter 1/4" male SAE 37 Degree Flare to 1/4" Male NPT ; Stainless Steel 304 - (SIZE)

HFS (R) Twin Fitting, Adapter 1/4″ male SAE 37 Degree Flare to 1/4″ Male NPT ; Stainless Steel 304

These fittings could be used for a lot of things including putting together a Spunding Valve Build.   cln_tn_spundingA Spunding Valve allows you to ferment under pressure, naturally and precisely carbonate in the keg, fix over-carbonated beers and more.

See: [Build a Spunding Valve].  Take a look at Build Option 2 for a version that uses this exact fitting including a photo of the build.

HFS (R) Twin Fitting, Adapter 1/4″ male SAE 37 Degree Flare to 1/4″ Male NPT ; Stainless Steel 304 – (SIZE)


Pinned: Early Bird Black Friday Deals at Amazon – Submit a Tip if you see beer gear

More: Recent Amazon Finds