Keezer temp setting

Discussion in 'General Home Brew Equipment Discussion' started by crowcrow, Aug 13, 2019.

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  1. Aug 13, 2019 #1

    crowcrow

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    Hi,

    Interested in thoughts from those that use a keezer:

    What temp do you have your keezer set to (and what beer do you run through it at that temp)

    What variance in temp do you have the set up to allow?

    What delay (if any) do you have once the variance is reached?

    Do you run a fan inside your keezer?

    Do you have any kind of dehumidifier in the keezer?

    Cheers!
     
  2. Aug 13, 2019 #2

    LeeH

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    10 degC
    +\- 0.6 (ink bird tightest tolerance)
    10 min delay.
    No fan
    Tea towel in the bottom.
     
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  3. Aug 13, 2019 #3

    mozza

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    Mine is at 7 degrees but it depends of what you’re serving. I think I’ve got it set to kick in when the temperature increases by 1 degree just to save the compressor a little
     
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  4. Aug 13, 2019 #4

    crowcrow

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    Thanks - I had mine set to 3.5c but with a 2.5c variance, and a 10 min delay. Which I think is prob a bit too wide. I'll have play, but think a fan might be of use - I have a USB ne somewhere that I might try, and link up to the temp switch.
     
  5. Aug 13, 2019 #5

    Jakeyboi

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    I set mine to 5.5C with a 1C variance
     
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  6. Aug 14, 2019 #6

    simon12

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    I just have the fridge set to 4C with no external control but will raise it a few degrees now the weathers not so hot.
     
  7. Aug 14, 2019 #7

    Ghillie

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    3C - all beer

    Deadband of 2.5C

    10 minutes, although it's irrelevant because the compressor only cycles every 60-90 minutes

    Fan inside keezer; 120x120 PC fan.

    Old towel in the bottom
     
  8. Aug 14, 2019 #8

    Ghillie

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    That delay only matters if your temperature climbs above your setpoint + deadband within X minutes since your compressor last switched off.

    So in your case, if you're temperature climbed from 3.5C to 6C in 8 minutes for example, the controller would wait a further 2 minutes before allowing the compressor to run.
     
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  9. Aug 19, 2019 at 9:31 PM #9

    stevey

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    got mine set at 10c, but it creeps down to 7c for some reason. I just can't bring myself to set it at 13c though.
     
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  10. Aug 20, 2019 at 11:16 AM #10

    Ghillie

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    What controller are you using?
     
  11. Aug 20, 2019 at 4:21 PM #11

    LeeH

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    Sounds like your probe is on the floor. Drape it over a keg off the freezer floor or sides.
     
  12. Aug 20, 2019 at 5:25 PM #12

    Ghillie

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    Even better, strap it to a keg and insulate it from ambient airathumb..
     
  13. Aug 20, 2019 at 5:35 PM #13

    Hoddy

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    I use a tall fridge with 4 kegs in it so it removes the need for any external temp control. I find setting the fridge coolness setting to 3 (scale of 1 - 5) works fine. Beer has got to be circa 3oC when served.
     
  14. Aug 20, 2019 at 6:34 PM #14

    LeeH

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    It’s not important in a keezer tbh with no fermentation occurring.
     
  15. Aug 20, 2019 at 8:46 PM #15

    foxbat

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    There seems to be a lot of people serving what I assume are ales at what is traditionally lager temperatures. Does no-one serve their ales at 11 or 12C like I do? Obviously it's personal, but I thought being a British forum we'd all be serving ales at pub cellar temperature.
     
  16. Aug 20, 2019 at 8:58 PM #16

    LeeH

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    10 for me, low temps subdue the hops but 12 is a tad too warm this time of year.
     
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  17. Aug 21, 2019 at 11:36 AM #17

    Ghillie

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    It's more to do with the amount of times your compressor kicks in. Ambient air temps will always fluctuate more than that of a liquid medium; a 19L corny for example. Or even a bottle of beer. The result is an increased number of "starts" by the compressor which lessens the life cycle of the keezer.

    Just had a look at your first post as well, differential of 0.6C - your compressor must always be running!?

    I have my probe sandwiched between a can of beer and one of them neoprene bottle/can cooler thingies. Works really well and compressor cycles every 90 minutes or so.

    But you're absolutely right, temperature is not so critical as it would be with fermentation. Personally, using an ancient freezer - I'm on a quest to go as easy on the old girl as possible:laugh8:

    Home tomorrow evening so will do my best to get the regs out in the post Friday morning buddy.
     
    Last edited: Aug 21, 2019 at 3:05 PM
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  18. Aug 21, 2019 at 5:20 PM #18

    stevey

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    Inkbird ITC 308.
     
  19. Aug 21, 2019 at 5:22 PM #19

    stevey

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    I drape it over the co2 pipes so it's suspended sort of mid keezer.
     
  20. Aug 21, 2019 at 5:33 PM #20

    Ghillie

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    I would reckon you're seeing temperature overshoot because you're measuring ambient air. A freezer cools on the outside where the evaporator coils are, and the dense coldest air sinks to the bottom. Once the air around your probe (middle of keezer) eventually comes down to setpoint - the compressor will have already been running for too long. Hence the 7C vs 13C. It's a closed loop system where the feedback isn't quite true.

    I'd recommend picking up something like this; dirt cheap and will give you more accurate readings. As already mentioned in post #17; it's only going to help make your keezer last longer too. Or you could strap your probe to the side of a keg with a bungee cord and insulate it with a sponge, bubble wrap, etc.

    https://www.ebay.co.uk/itm/1-PCS-Ne...hash=item2acb4c74ef:m:mNcVcaMCKnaaonzLti5j_xw
    Sleeve.jpg
     

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