Sodium Hydroxide to clean Flex tanks

Discussion in 'Commercial Winery Forum' started by Ohio Don, Sep 9, 2018.

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  1. Ohio Don

    Ohio Don Junior

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    I am trying to figure out how to make 2% Sodium Hydroxide solution to clean Flex tank. How many PPM? I am unable to find anything online.
     
  2. ibglowin

    ibglowin Moderator Super Moderator

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    Why in the world would you want to use a caustic like sodium hydroxide to clean a flex tank? Something like PBW” (Powdered Brewery Wash”) or even Oxyclean should be quite sufficient.
     
  3. Ohio Don

    Ohio Don Junior

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    Mold in the tank and it’s what the manufacturer recommended
     
  4. stickman

    stickman Veteran Winemaker

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    20 grams of sodium hydroxide with water up to 1 liter would be a 2% solution. I believe the Flextank manual indicates using 2 or 3% caustic solution for cleaning. I agree with Mike above, I've been using the unscented Oxyclean with good results. Playing around with dry caustic is dangerous if you are unfamiliar with the material.
     
  5. codeman

    codeman Senior Member

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    I use StarSan in a garden sprayer (new) and dump out anything that puddles.
     
  6. balatonwine

    balatonwine The Verecund Vigneron

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    An example of the superiority of the metric system: 20 grams in 1000 grams of water (i.e. 1 L of water which is also 1000 ml of water) =~ 2% by basic math. :)
     
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  7. ibglowin

    ibglowin Moderator Super Moderator

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    Is there another system? LOL

     
  8. balatonwine

    balatonwine The Verecund Vigneron

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    Spiritually, I agree with you. :b

    But, realistically, most people here discuss "gallons". ;)
     

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