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Why Do You Need An Airlock?

During the fermentation process, theyeast eats sugar to produce alcohol and carbon dioxide. Carbon dioxide bubbles rise through the

An airlock is vital to a successful homebrew. A quality airlock will:

Keep a sterile seal on your brew
Allow gasses from fermentation to be released
Prevent the fermenter from exploding
Prevent wild yeasts, bacteria, dust, or pests from contaminating the finished product.......
Airlocks also prevent oxidation
Oxygen in the air can ruin an entire batch of beer.
Even if the brewer thinks that the air quality around their fermenter may be safe from wild yeasts and bacteria, it’s important to use an airlock to prevent the air from spoiling the beer while it goes through fermentation over several weeks. USE FOR BEER WINE AND MOON SHINE....The three-piece airlock is a newer design that is preferred by many homebrewers.
In this design, the airlock consists of three pieces:
- a base with a stem
- a piston
- a vented cap.
  When Do You Need an Airlock?
  Any time you plan to ferment, you’ll need an airlock.
  Airlocks are not only for brewing beer but can be used for any type of brewing, such as wine, mead, or cider. Even fermenting pickles, or pickling any type of fruit or vegetable, should be done with an airlock.
- Good Airlock!. Works very well, and is cheaply priced. What’s not to love? This sale is for 2
  
  3-Piece Plastic Fermentation Airlock with 2 FREE Grommets
- Water airlock for fermentation of beer, wine, moonshine, pickles, sauerkraut.
  Brand new in sealed package.
  Doesn't allow reverse air transfer.
  Simple, effective air lock.
  Creates a closed system that allows CO2 out and prevents oxygen and harmful bacteria from getting in.
  Standard size airlocks made to fit any home brew stopper, cork, cap, plug, bung, or grommet with a 3/8" hole.
  Fill to line with water or sanitizer.
  Use with a drilled stopper.
  Easier to clean than the double bubble.
  Guaranteed exceptional quality.
- Dave P
  Apr 15, 2018, 12:00 AM
  
  As advertised. Thank you for your great customer service
- BayouRuler
  Jun 15, 2010, 12:00 AM
  
  Great Price. These air locks are made of quality material and the price is unbeatable! Quality product and a great price!!
- chris r
  Jul 6, 2008, 12:00 AM
  
  airlock. ez ,cheap, and saves you the hassle of the old hose syle i always used.
- Carolina Shining
  Jan 21, 2007, 12:00 AM
  
  good.. its an airlock. it does what an airlock is supposed to do. however, the price is unbeatable compared to what i've come across.

Airlocks also prevent oxidation

When Do You Need an Airlock?