An Airlock is essential for preventing oxidation during fermentation and aging of your home brews. Today We talk about the correct method to use one.

How to use Airlock

Description of S Type and 3 Piece Airlock. How to attach a Grommet and silicone cork to it
Prep Time1 min
Active Time1 min
Total Time2 mins
Course: home brewing
Cuisine: beer, homemade wines
Keyword: 3 piece airlock, bubbler, cork, grommet, home brew fermenter, s type airlock
Yield: 1 airlock
Cost: 200


  • 3 piece airlock
  • S type Airlock


  • 1 piece Rubber Grommet
  • 1 Piece Silicone Plug


S Type Airlock

  • Pour 15ml water in S Type Airlock
  • Attach it to a grommet or cork and put it in the fermenter

3 Piece Airlock

  • Make sure that the 3 pieces are correctly aligned

Attaching to the Fermenter

  • Use a grommet, cork or a sealant to attach your airlock to your fermenter
  • Do a pressure test. Press the lid gently and see if the airlock bubbles. If it does then seals are airtight. Else one needs to fix the leakage.


Airlocks are a handy tool to prevent oxidation of your home brews. Always keep a spare one handy. If you are using S type airlock, make sure you top up the water level frequently.

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21 years of experience in Home Brewing and author of Arishtam (India's first homebrew Guide Book).

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