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Thread: Super - chilled salt water in Esky.

  1. 2nd October 2020, 05:20 PM #1
    superquag
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    Super - chilled salt water in Esky.

    Briefly, #3 Son heard about this 'Theory', that freezing heavily salted water will keep your Esky (ChillyBin ? ) colder and for longer.

    Well, after a week away, the evidence has returned, This arvo measured at - 7 degrees. Tells me it was so cold in there his hand near-froze when fishing around for a beverage !
    That was their storage freezer to feed half a dozen stomachs, so not a small one...

    Took a long, long time to freeze the ice blocks... Engel flat out ran for days to freeze the mixture.IMG_1929.jpg
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  2. 2nd October 2020, 05:50 PM #2
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    Fill with crushed ice then cover with salt.
    If you don't like trucks, stop buying stuff.
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  3. 2nd October 2020, 07:00 PM #3
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    Nice real world test. Super - chilled salt water in Esky.

    If he has an Engel, why the need for the frozen saline?
    If you need to contact me please email homestarrunnerau@gmail.com - thanks - Gav.
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  4. 2nd October 2020, 08:08 PM #4
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    The saltier the water the lower the temp needs to be to freeze it. Many moons ago we used to semi freeze prawns in just very salty sea water , many times the water was tested at -8 and still not frozen, just a slurry.

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  5. 3rd October 2020, 12:38 AM #5
    superquag
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    Yes, he'd been told about it at work... Explaining the 'science' didn't quite convince him... - hence his need to DO the experiment.
    - The Engel was also in use for the trip.
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  6. 3rd October 2020, 11:03 AM #6
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    Several grog shops have a machine that uses high salinity slurry to chill bottles before you leave the store.
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  7. 3rd October 2020, 12:18 PM #7
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    Most Trawlers have a very cold brine slurry in huge tanks just below the deck that the fish end up in as they come out of the nets.

    I think they used to run at around -5 degrees.
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  8. 3rd October 2020, 01:57 PM #8
    Arapiles
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    Quote Originally Posted by superquag View Post
    Briefly, #3 Son heard about this 'Theory', that freezing heavily salted water will keep your Esky (ChillyBin ? ) colder and for longer.

    Well, after a week away, the evidence has returned, This arvo measured at - 7 degrees. Tells me it was so cold in there his hand near-froze when fishing around for a beverage !
    That was their storage freezer to feed half a dozen stomachs, so not a small one...

    Took a long, long time to freeze the ice blocks... Engel flat out ran for days to freeze the mixture.

    Which is why sea water in the Antarctic doesn't freeze at zero degrees - currently measured at -1.8 C:

    Current sea water temperature in Antarctica

    It's also how people used to make and freeze ice-cream, using a salt slurry.
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