Stuck brew help

Discussion in 'General Beer Brewing Discussion' started by Byron, Jul 8, 2015.

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  1. Jul 8, 2015 #1

    Byron

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    Hi,

    Checked my latest after 10 days on primary and it was 1.020 checked again today after 14 and no movement. The recipe predicts an FG of 1.012 so I think it's stuck.

    Any advice if I can get it going again?

    Cheers,

    Byron
     
  2. Jul 8, 2015 #2

    nbpicklesno2

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    Hi Byron. If you type 'stuck fermentation' into the search bar at the top of the home page, you'll get, literally hundreds of similar threads and loads of good advice.
     
  3. Jul 9, 2015 #3

    MyQul

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    Hi Byron and welcome to the forum.

    Standard advice for stuck brews:

    - a good stir but gently so you don't introduce oxygen to oxydise your beer (sanitise the strirring impelent of course)
    - get the temp up, 21C or more
    - add some fementables such as 150g sugar dissolved in a little water. Boil and cool first though

    And if it's still stuck you can also try amylase enzyme
     
  4. Jul 9, 2015 #4

    Cwrw666

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    It all depends on the reason for the stuck fermentation. If the temperature has dropped too low the yeast can just go dormant - hence raising the temperature and giving it a stir. If there's too many complex carbs in the brew then the amylase is the cure as it breaks them down into fermentable sugars.:cheers:
     
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  5. Jul 9, 2015 #5

    MyQul

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    You may have noticed that I C&P my answer from the stuck fermentation tips thread I created. Your answer is also very good, so If you dont mind I'm going to add your answer to the guide.
     
  6. Jul 9, 2015 #6

    Byron

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    Thanks all
     
  7. Jul 11, 2015 #7

    Byron

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    Right it's still stuck today after a stir next week. Going to put some sugar in today. If it's still stuck how much amylase should I add?
     
  8. Jul 11, 2015 #8

    Cwrw666

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    I've only used it once and bought a little sachet of it off Ebay that was enough for a 5 gallon brew. Cost £2.09 if I remember correctly, with free postage. Homebrew suppliers also do it in tubs but watch out for the postage charges. Ouch.
     
  9. Jul 15, 2015 #9

    Byron

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    The sugar's done nothing! Amylase it is
     
  10. Jul 15, 2015 #10

    Budgie

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    Could I ask how much amylase was in the sachet? I got a tub from the LHBS which said 1 teaspoon per 4.5 litres, but it's had no effect.
     
  11. Jul 15, 2015 #11

    Byron

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  12. Jul 15, 2015 #12

    Budgie

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    I reckon I've used enough then. Back to the drawing board on this one. Unless I've used it wrong of course.

    heres a pic of the label from my bottle. I just dissolved sone in boiled and cooled water, poured it in and gave the FV a bit of a shake.

    image.jpg
     
  13. Jul 18, 2015 #13

    Byron

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    Right, I have the amylase now but nowhere does it tell you how to add this to the brew. Do I dissolve in boiled water? Just add it in. Stir? Heat up?

    Any advice appreciated
     

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