How to make Air-Lock (Tutorial)

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Jun 14, 2009
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How to make your own Air-Lock (Not a balloon!) :r

Are you thinking about making your own wine or beer? There are lots of quick and simple recipes out there for making wine but many of them suggest you use a balloon as your airlock. While this is very cheap and practical, I have found that many people claim it can leave a "rubbery" taste in your drink.

Commercial airlocks are not expensive by any means, but if you are like me and don't live close to a home brew store (or don't have store too), you are on your own. I have a simple solution for you, you can make your own super cheap one for less than $2 and maybe even free if you have all the stuff lying around!

There are 2 different methods, one is the bare minimum way (~36 cents plus some spare things you probably have lying around) and the other is the recommended way (a little under $2).

Step 1 (Materials)

Bare Minimum way:

01- Tape
02- Pen
03- Plastic tubing
04- Jar (clear is best)
05- Water
06- Something to punch a hole with.

Recommended way:

01- Hot glue gun
02- 1 Nylon barb and matching nut (I got this from the hardware store, ~$1.25)
03- Plastic tubing (~ 2 feet, depending on where you will be placing your jar)
04- Jar (clear is still best)
05- Water
06- Drill



Step 2 (Methods)

This is my illustration, hopefully it is pretty straight forward.

Detailed instructions....

1: Cut a hole in a box

Drill a hole in the lid of your fermentation vessel (or punch a hole in it, however you prefer to make holes). Make sure that it is very close in size to your nylon barb (or pen top). If you make the hole too big you risk not being able to make the seal airtight.

2: Put your junk in that box

Place your nylon barb into the hole you made in the fermentation vessel's lid (the barb should be on the external surface). I got a nylon barb from the hardware store for about $1.25. Lock it down by placing some hot glue around the hole and then quickly bolting the barb to your lid with its corresponding nut. If you are not satisfied with the seal, use more hot glue around the cracks where air may escape.
If you are doing the bare minimum method, put the tapered pen piece in the hole (tapered end facing outward) and tape it down like hell. I am assuming duct tape would be the tape of choice for this method.

3: Make her open the... I mean hook up your tubing

Hook up your plastic tubing. I bought mine from the hardware store for 18 cents a foot but I am sure there are plenty of places you can get it (Maybe some aquarium tubing from a pet store? Not pre-used though, that would be unsanitary). Either way, I bought 2 feet of tubing which worked out quite well, you may need more if you are not using a bucket as a fermentation vessel and have to set the jar somewhere farther away. As explained in the step's title, hook up the tubing to your barb (if using a pen tip you may want to using something, like tape, again to make sure your seal is still air tight, this problem is not as prominent in the barb method though).

4: Cut many holes in your jar's lid

Cut a main center hole in the jar's lid that is large enough for your plastic tubing to fit in, the size of this one is not that important. I place a little bit of tape around the rough edges of the hole as to not damage my plastic tubing. Also, poke many smaller holes around the center one to allow CO2 to escape from you airlock jar.

5: Place your tubing below the water level

This is pretty self explanatory, fill your jar about halfway with water and place the tube below the water level so that CO2 can escape from your vessel but will not come back in (due to the water barrier). I found that the closer the tube is to the water level (while still being below it) the quieter the bubbling noise is.




Step 3 (Results)

There you have it! You now have your own homemade airlock and it cost you less than $2. Be proud of yourself.

Also, I recommend using water or vodka in your airlock, not sanitizer. This is what I found about it on (the greatest site ever!).

"Many brewers simply fill the liquid chamber with water, which in itself acts as a sufficient barrier to contamination. Others use a sanitizing solution in their airlocks. However, this is generally a bad idea with a small airlock. Sanitizer does not offer much, if any, additional protection, since airborne bacteria or wild yeasts are unlikely to be able to pass through any liquid and become airborne again in sufficient quantity to spoil beer. More importantly, under some circumstances, material from the airlock can be sucked into the fermenter, and even unboiled tap water is better for your wort or must than most sanitizers. As a compromise, some brewers use vodka, which is sanitary but will not contribute any flavor or character to the finished product other than a small amount of alcohol."


Step 4 (Completed)

Now you have completed with your Air-Lock, Congrats ..... :h

Hope that you have enjoyed it.

One more important thing people like me also cannot find carboys aka demijohn in my city, Now with this Tutorial I can make a carboy of a jar, that means a glass big jar of about 1 gallon, sufficient for me because it is good to have something and is better than nothing.

So I think you can also make a demijohn small or big it is up to you. It is up to you need and your wildness of drinking wine or beer. hahahaha

Step 5 (Credit)

This Tutorial was given by one of my best friend. He is my internet friend, the tutorial was send by email and I received it in a document form and the pictures were also with it but in other folder. So I decided to share this tutorial with you. I don't know from were he found this tutorial .... I was Surprised when I got this and was very happy too. But anyways enjoy the tutorial.

As soon as I get more tutorials I will share them too . . . .

:hPlease Leave A Comment on this Tutorial:h


:bLeT uS cHeSs :b
Last edited:

Madriver Wines

Senior Member
Apr 6, 2009
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Wow I got lost on the way down the page.:d
How do you get out of here?:)
Just kidding great job.

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