Pressure Ferment with HDPE Speidels???

Discussion in 'General Brewing Discussions' started by Craigerrr, Jan 6, 2021.

  1. Craigerrr

    Craigerrr Well-Known Member

    Joined:
    Mar 14, 2018
    Messages:
    5,792
    Likes Received:
    8,650
    Trophy Points:
    113
    Has anyone fermented under pressure with the HDPE Speidels?
    I was thinking about cold crashing with 1 or 2 PSI through a cap in the top with a duotight fitting in ot.
    This would also be good for preventing oxygen ingress during gravity transfers.


    Drilling a hole in this:
    upload_2021-1-6_14-37-33.png

    To connect one of these:
    upload_2021-1-6_14-36-43.png

    This is the fermenter in question.

    SPEIDEL.JPG
     
    Trialben likes this.
  2. Nosybear

    Nosybear Well-Known Member

    Joined:
    Jul 16, 2012
    Messages:
    9,548
    Likes Received:
    6,881
    Trophy Points:
    113
    Location:
    Aurora, CO, USA
    The vessel walls should hold the slight pressure you intend, I'd worry about the lid.
     
  3. Mark Farrall

    Mark Farrall Well-Known Member

    Joined:
    Oct 19, 2017
    Messages:
    1,440
    Likes Received:
    1,628
    Trophy Points:
    113
    Location:
    Melbourne Australia
    #3 Mark Farrall, Jan 7, 2021
    Last edited: Jan 7, 2021
    I routinely add 1-2 psi for bottling in these fermenters (I use the 20 litre version). No problem with those pressures. I'm using something similar from Norcal - https://www.norcalbrewingsolutions.com/store/Fermenting-Equipment-Fermenters-Speidel.html. They fit in the standard ports and have a silicon gasket that makes a nice seal.

    I use this one in the bottom port, with a beer to beer line connected to the keg. I then attach a floating dip tube arrangement to this, so I don't have to worry about blockages.

    liquid.jpg

    And this is in the top port. The PRV is useful in case I'm not paying attention, though as I'm also using a bit of gravity to fill the keg I really only turn on the gas for a few seconds at a time when the flow starts to slow down. I don't do anything smart on the keg, just keep the PRV open while I'm filling.

    gas.jpg

    I only do the transfer under pressure. The fermentation is done with just a blow off.
     
  4. Trialben

    Trialben Well-Known Member

    Joined:
    Mar 30, 2016
    Messages:
    9,722
    Likes Received:
    10,515
    Trophy Points:
    113
    Gender:
    Male
    Occupation:
    Pest control tech
    Location:
    Palmwoods QLD
    I've tightened the lid a time or two before when fermenting right in the Cube their HDPE. It didn't blow up blew up like a balloon though lol!
     
    BOB357 and Craigerrr like this.
  5. Craigerrr

    Craigerrr Well-Known Member

    Joined:
    Mar 14, 2018
    Messages:
    5,792
    Likes Received:
    8,650
    Trophy Points:
    113
    That's slick!
    Me like!
     
  6. Craigerrr

    Craigerrr Well-Known Member

    Joined:
    Mar 14, 2018
    Messages:
    5,792
    Likes Received:
    8,650
    Trophy Points:
    113
    I see they have quite an array of accessories for the Speidels!
     
    thunderwagn and Mark Farrall like this.
  7. Mark Farrall

    Mark Farrall Well-Known Member

    Joined:
    Oct 19, 2017
    Messages:
    1,440
    Likes Received:
    1,628
    Trophy Points:
    113
    Location:
    Melbourne Australia
    The floating dip tube I use is the Fermzilla one. It seems to be sold separately at a lot of stores.
     
    Trialben and thunderwagn like this.
  8. Craigerrr

    Craigerrr Well-Known Member

    Joined:
    Mar 14, 2018
    Messages:
    5,792
    Likes Received:
    8,650
    Trophy Points:
    113
    I have a couple of them that I used recently in kegs with mixed results, they got hung up on the side of the keg a couple of times. Might consider adding a bit of weight in future. Should be jim sandy on the speidel though!
     
  9. Mark Farrall

    Mark Farrall Well-Known Member

    Joined:
    Oct 19, 2017
    Messages:
    1,440
    Likes Received:
    1,628
    Trophy Points:
    113
    Location:
    Melbourne Australia
    I had that happen to me last batch. The first fermenter I set up I did a test with water to get the right length. Last fermenter I set up I forgot about the side problem and thought I'll just add an extra cm or two to the tubing to be safe. Bloody painful transfer that was. Thankfully on a beer that likes a bit of oxygen for aging. After that I trimmed all the tubing to the shortest length.
     
    Craigerrr and Trialben like this.
  10. Trialben

    Trialben Well-Known Member

    Joined:
    Mar 30, 2016
    Messages:
    9,722
    Likes Received:
    10,515
    Trophy Points:
    113
    Gender:
    Male
    Occupation:
    Pest control tech
    Location:
    Palmwoods QLD
    Yup i found that out as well. You want the end of the transfer to draw the float into the centre off the side. Tis what I've found.
    Hard in a keg though...
     
  11. Craigerrr

    Craigerrr Well-Known Member

    Joined:
    Mar 14, 2018
    Messages:
    5,792
    Likes Received:
    8,650
    Trophy Points:
    113
    I reached out to NorCal about their accessories for the Speidels. With a disclaimer to proceed at my own risk, they said that they have pressurized these fermenters successfully. I don't plan to be purchasing any new gear for a while, but when I do in the spring, I will be ordering a few gadgets from them. I am honestly more interested in trying the floating dip tube than actually pressure fermenting. Thanks for all of the input and comments folks!
     
    Trialben likes this.
  12. Frankenbrewer

    Frankenbrewer Well-Known Member

    Joined:
    Jul 19, 2019
    Messages:
    676
    Likes Received:
    1,068
    Trophy Points:
    93
    Location:
    Connecticut
    I have 3 of the floating dip tubes. They work great.
     
  13. Mark Farrall

    Mark Farrall Well-Known Member

    Joined:
    Oct 19, 2017
    Messages:
    1,440
    Likes Received:
    1,628
    Trophy Points:
    113
    Location:
    Melbourne Australia
    Not that this thread really needs this, but it was packaging day yesterday, so a few snaps of the full setup. First is for the bottle filling. Second is the keg filling.

    The batches I packaged yesterday were a mix of bottles and kegs. Getting through a full keg of imperial stout isn't the most practical thing for me and the wife.

    bottle-fill.jpg keg-fill.jpg
     
    Trialben, Megary and thunderwagn like this.
  14. Craigerrr

    Craigerrr Well-Known Member

    Joined:
    Mar 14, 2018
    Messages:
    5,792
    Likes Received:
    8,650
    Trophy Points:
    113
    Cool, thanks for posting this.
    I am going to work with what I have for the next while, but I will be ordering some bits from Nor Cal inthe spring
     
  15. thunderwagn

    thunderwagn Well-Known Member

    Joined:
    Sep 5, 2015
    Messages:
    3,790
    Likes Received:
    7,362
    Trophy Points:
    113
    What keg do you have there? I'm looking for a 1-3 gallon.
     
  16. Blackmuse

    Blackmuse Well-Known Member

    Joined:
    Jul 8, 2012
    Messages:
    952
    Likes Received:
    994
    Trophy Points:
    93
    Gender:
    Male
    Occupation:
    Electrician (Previously a 6th grade Teacher)
    Location:
    Maine
    Home Page:
    That looks like the torpedo keg - I could be wrong but if it is they are nice. expensive but nice. I have a 1.5 and 2.5 gallon kegs - They stack real nice!
     
    Trialben and thunderwagn like this.
  17. Mark Farrall

    Mark Farrall Well-Known Member

    Joined:
    Oct 19, 2017
    Messages:
    1,440
    Likes Received:
    1,628
    Trophy Points:
    113
    Location:
    Melbourne Australia
    Yep, the smallest torpedo keg. So well made, but as Blackmuse says, expensive. It's the 6 litres/1.6 gallon version.
     
    thunderwagn likes this.
  18. Blackmuse

    Blackmuse Well-Known Member

    Joined:
    Jul 8, 2012
    Messages:
    952
    Likes Received:
    994
    Trophy Points:
    93
    Gender:
    Male
    Occupation:
    Electrician (Previously a 6th grade Teacher)
    Location:
    Maine
    Home Page:
    You know what else they are good for though! - Cleaning beer lines! I mix a solution in that little bad boy and start running into the beer lines - then after 30 minutes or so I rinse the keg - fill with hot water and flush all the lines! Works great and you can do a whole keezer in one sitting! Pretty sweet. - I'm actually going to bring it to my dad's later this week to clean and flush his line before putting Shuttz: Pete's Big Brown Ale on tap!
     
    Trialben and thunderwagn like this.
  19. Trialben

    Trialben Well-Known Member

    Joined:
    Mar 30, 2016
    Messages:
    9,722
    Likes Received:
    10,515
    Trophy Points:
    113
    Gender:
    Male
    Occupation:
    Pest control tech
    Location:
    Palmwoods QLD
    Ouch! Don't trust his dirty beer lines hey!:D
     
  20. Blackmuse

    Blackmuse Well-Known Member

    Joined:
    Jul 8, 2012
    Messages:
    952
    Likes Received:
    994
    Trophy Points:
    93
    Gender:
    Male
    Occupation:
    Electrician (Previously a 6th grade Teacher)
    Location:
    Maine
    Home Page:
    Yeah! They are usually fine if he immediately replaces an empty keg with a new one but I know it's been a month or so since his last keg and I'm sure there is still stale beer in the line! lol
     
    Trialben likes this.

Share This Page

arrow_white