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Keg Washer: Complete

Remember when we outgrew our original, 12-gallon brewhouse, and we turned it into a keg washer? Well, it didn’t take long for us to outgrow that keg washer. This was a problem, because our kegs aren’t going to clean themselves. Thanks to Chris “Hank” Henke, our Chief Operating Officer/resident engineer, they don’t have to.

He’s been working all summer, in his spare time, on building a new and improved machine, complete with scrap parts and clever eBay purchases.

The process – which Hank says is loosely similar to that of a washing machine — works like this:

  1. Four kegs are mounted on the washer at one time.
  2. Compressed air is pushed through each in order to purge the containers of any lingering beer or yeast.
  3. The kegs are rinsed with hot water.
  4. Compressed air is pushed through each in order to purge this hot water.
  5. A non-caustic, alkaline brewery cleaner is run through all kegs.
  6. Compressed air is pushed through in order to purge this cleaner.
  7. The kegs are rinsed with hot water.
  8. Compressed air is pushed through again in order to purge this hot water.
  9. Sanitizer is pushed through.
  10. The kegs are purged again, but with CO2 – not air – this time.
  11. The kegs are pressurized with CO2. This way, oxygen is kept out of the containers, so that it won’t spoil the next batch of beer.

The fully-automated cycle lasts seven minutes. And in case you’re lucky enough to catch it in action on your next tour of the brewery (or even if you’re not), here’s your key, which will get larger if you click on it:

kw2