Removing mold from the brass valve fitting

Discussion in 'General Beer Discussion' started by hill1649, Oct 18, 2019.

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  1. Oct 18, 2019 #1

    hill1649

    hill1649

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    Hi all,

    I've been given a couple of 2 gallon barrels, the S30 valve nut of one of the lids has mold on it - any idea how to clean this up? Is it possible to salvage it? How do you sanitise these valves? Many thanks.

    Lorna

    Moldy valve.jpg
     
  2. Oct 18, 2019 #2

    Bigjas

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    I've just done the same thing. I put mine in to a small cup of Pepsi Cola for a couple of days. It came out looking like new....
     
  3. Oct 18, 2019 #3

    hill1649

    hill1649

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    Thanks, will give this a go.
     
  4. Oct 18, 2019 #4

    kelper

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    Tomato ketchup does well too. Keep brass away from chlorine-based sanitisers!
     
  5. Oct 20, 2019 #5

    hill1649

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    Thanks. Presumably the no rinse sanitisers are okay for sterilising? they appear to be acid based rather than chlorine based.
     
  6. Oct 20, 2019 #6

    kelper

    kelper

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    The oxygen sanitisers should be OK.
     
  7. Oct 20, 2019 #7

    DixeySJ

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    I recently bought a new one and the product leaflet warned against Sodium Metabisulphate as well. I seem to remember I cleaned one up with Brasso - but the Pepsi tip sounds worth knowing!
     
  8. Oct 21, 2019 #8

    hill1649

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    Cheers!
     
  9. Oct 21, 2019 #9

    hill1649

    hill1649

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    I'm using Coca Cola - seems to be doing the business.

    I'm not sure what the problem is with using Sodium Metabisulphate???
     
  10. Oct 21, 2019 #10

    An Ankoù

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    It's unlikely to be mould but verdigris, a corrosion product of the brass. You certainly don't want it in your beer. Years ago I used to keep my pressure barrels "sweet" by putting a bit of sodium metabisulphite solution in there. It always turned the brassware green so stopped doing it. They'll clean up fine. The worst was with the earlier aluminium fittings.
     
  11. Oct 21, 2019 #11

    hill1649

    hill1649

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    Thanks. Yes, on closer inspection it wasn't mold but corrosion. Does look like it's cleaning up nicely, if slowly. Thankfully, none of my other fittings are looking damaged!
     
  12. Oct 21, 2019 #12

    kelper

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    A wire brush would clean it.

    Brass is naturally anti-bacterial; so, when you sanitise your equipment, just cover the brass with a smear of vaseline or food-grade grease. Not the vaseline you keep upstairs.
     
    Last edited: Oct 21, 2019
  13. Oct 21, 2019 #13

    hill1649

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    I was thinking about using some wire wool on it - but that means digging around in the garden shed and there are huge spiders in there! If the Coca Cola doesn't work I'll venture in!
     
  14. Oct 21, 2019 #14

    An Ankoù

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    Buggger that for a game of soldiers. Leave it to the spiders and use a Brillo pad.:eek:
     

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