How to Clean a Draught Beer Line

Written by colin rowe
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How to Clean a Draught Beer Line
Cleaning beer lines regularly will ensure the best quality beer. (beer image by Zakharchenko from

As a pub or bar manager, it is important to make sure your beer lines are clean. Clean lines ensure not only that there is no bacteria in the pipes, they also improve the taste of the beer and keep it from going flat. Although a very simple task, cleaning the lines can take an hour to do properly. It is recommended that you clean the draught lines every half keg.

Skill level:

Things you need

  • Two tanks of water
  • Cleaning solution

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  1. 1

    Purchase some cleaning solution. You can buy this from any bar supply company. The cleaning solution sometimes comes dyed so it is easier to see when pulling through the lines.

  2. 2

    Buy some specialised water tanks with attachments for kegs. If your kegs just use a tube going straight into the barrel, any kind of tank will do.

  3. 3

    Add some cleaning solution to one of the water tanks. The water should feel slightly greasy to the touch, but refer to the instructions on the cleaning solution for best concentration levels.

  4. 4

    Remove the line from the keg and place it into the clean water tank. Pull it through the water until it starts to run out of the beer tap.

  5. 5

    Attach the line to the tank that includes the cleaning solution, and pull it through until it is running out of the beer tap. If the solution is dyed, this will be obvious. Otherwise wait until the water feels greasy or you can smell it.

  6. 6

    Leave the cleaning solution in the line for at least half an hour, but refer to the cleaning solution manufacturer's guidelines for optimal results.

  7. 7

    Transfer the line back to the clean water and pull several litres through the line until you are satisfied all the cleaning solution is out of the line.

  8. 8

    Reattach the line to the keg.

Tips and warnings

  • The cleaning solution is a chemical, so it is important the line is clear of it before you start serving beer again

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