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Keg Washing - Extract Beers and Flavoring

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  • Keg Washing - Extract Beers and Flavoring

    We produce a lot of different beers in our brewery that utilize extract flavoring, syrups, spices and fruits. We have had issues getting all the flavors out of kegs during keg washing and the flavoring sticks around and taints the next beer that goes in the same keg. It's gotten so bad that I have had to separate the kegs that utilize flavoring from the ones that don't in order to keep the clean beers from picking up undesirable flavors. Its been very noticeable on the hoppy and clean beers and ranges from tasting like someone is pouring the beer through a dirty tap line to completely tasting like fruits or spices.

    We are using a 3 head Premier Stainless keg washer with a caustic and acid cycle and its just not cutting it. Anyone have similar issues or methods to successfully remove stubborn flavors?

  • #2
    It is probably getting stuck in the rubber parts or on the dip tube. The caustic on the stainless should get it off of there. How hot are you running the cleaning cycle? And does your unit have a part of the cycle of low flow to clean the dip tube? If you can go hotter, it may help with the rubber, and having a slower flow for part of the cycle will ensure the dip tube is cleaned. You should run one through a cycle as is, pull the spear and check out what is not getting cleaned. If it is getting into the rubber parts, probably nothing much you would be able to do, perhaps consider switching to one way kegs so you don't wash or reuse them.

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