How to Build an Airlock Valve for Wine and Beer Production

Table of contents:

How to Build an Airlock Valve for Wine and Beer Production
How to Build an Airlock Valve for Wine and Beer Production
Anonim

An airlock valve allows carbon dioxide (CO2) to exit the wine and beer fermentation container without allowing air to enter.

Steps

Make an Airlock for Wine and Beer Production Step 1
Make an Airlock for Wine and Beer Production Step 1

Step 1. Clean a clear plastic container

Clean, unlabeled drug tubes are fine.

Make an Airlock for Wine and Beer Production Step 2
Make an Airlock for Wine and Beer Production Step 2

Step 2. Drill a 3mm hole in the lid and another ballpoint-sized hole in the bottom

Make an Airlock for Wine and Beer Production Step 3
Make an Airlock for Wine and Beer Production Step 3

Step 3. Remove the core of a pen and keep only the empty tube

Insert the tube into the hole you made in the bottom and push it inside until only about 1.5 cm remains out. Mix two-part, quick-setting epoxy glue to seal the tube to the container.

Make an Airlock for Wine and Beer Production Step 4
Make an Airlock for Wine and Beer Production Step 4

Step 4. Clean a shotgun cartridge (7.62mm or otherwise larger than the pen tube diameter)

Put it over the end of the tube that is inside the container.

Make an Airlock for Wine and Beer Production Step 5
Make an Airlock for Wine and Beer Production Step 5

Step 5. Drill a cork, the hole should be slightly smaller than the diameter of the pen

Insert the tip of the pen into the cap.

Make an Airlock for Wine and Beer Production Step 6
Make an Airlock for Wine and Beer Production Step 6

Step 6. Fill the container with water to approximately 6mm from the top edge of the shotgun cartridge

Make an Airlock for Wine and Beer Production Step 7
Make an Airlock for Wine and Beer Production Step 7

Step 7. Insert the end with the cork into the bottle in which the wine, beer or must of spirits is fermenting

Advice

The airlock valve works on the same principle as the siphon under the bathroom sink. A pocket of air is created which exits from the top but does not allow the one above to enter. You can replace each of the components with similar items. The transparent plastic tubes are easy to work with and also allow you to see the CO2 bubbles in the water (which is very important) and therefore to evaluate the fermentation. Carbon dioxide rises along the pen tube, then is led to the water by the inverted cartridge and finally comes out of the small hole in the lid. An airlock you buy works exactly the same way and costs between 10 and 20 euros. With 10 minutes of work, you can have an airlock valve for pennies

Warnings

  • Check the water level inside the valve every 2 or 3 days to be sure it is high enough, as it evaporates during the process. The larger the drug tube you use, the less water you will need to top up.
  • Make sure that the epoxy glue has dried well (at least one hour) before filling the water valve.

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