Grow Your Own Magazine

Navbar button growfruitandveg.co.uk Logo
Forum Navigation

+ Reply to Thread
Page 3 of 3 FirstFirst 123
Results 17 to 23 of 23
Like Tree60Likes

Thread: Off grid, um "soft drink" cooler ;)

  1. #17
    Cadalot's Avatar
    Cadalot is offline Early Fruiter
    Join Date
    Nov 2015
    Location
    Sutton Surrey
    Posts
    4,870

    Default

    I keep cans in the back of the shed in a cupboard draw and they stay cold even in this hot summer we have but I also have a USB Mini Fridge and a charging battery that I can plug it into to make it even colder.

    Look on Amazon for a Fridge-Scenstar-Cooler-Beverage-Refrigerator
    Snoop Puss and Baldy like this.

    . .......Man Vs Slug
    Click Here for my Diary and Blog
    Nutters Club Member

  2. #18
    bikermike is offline Cropper
    Join Date
    Nov 2017
    Location
    North London frontier
    Posts
    1,440

    Default

    Quote Originally Posted by Baldy View Post
    There's only one lemonade shop in the village - its got a bit of an atmosphere sometimes...
    you get that when people drink a lot of English lemonade in one place. Opening a window helps...

    I don't suppose your plot has a stream by/in it does it? if you could fashion a basket that could securely hold the lemonade and sit in the water that would keep them cool.
    Snoop Puss, greenishfing and Baldy like this.

  3. #19
    Jay-ell's Avatar
    Jay-ell is offline Welcome To The Jungle
    Join Date
    Sep 2014
    Location
    Newcastle upon Tyne
    Posts
    5,880
    Blog Entries
    1

    Default

    Unless there's power or chemical reaction involved then there's a limit to how much you can cool something which will be the ambient temperature.

    When something wants to change state (e.g. liquid to gas/vapour) it needs to transfer heat between itself and something else. It also needs a reason to want to change.

    Water needs to transfer alot of energy to change temperature (it takes less energy to heat concrete 1 degree than a comparable amount of water).

    The best semi off grid method is a bag of ice and some salt. The salt makes the ice want to melt quickly which then needs to suck the heat out of anything it's in contact with. Used to make icecream this way and it's so effective it has been known to make Newcastle Brown Popsicles.

    Evaporative is your next best bet. This is what the charcoal cooler done as well as things like canvas bags soaked in water. The key with these is having a draught so the warmed water vapour can be moved away.

    Half glazed earthenware jars used to be used to keep food cool. The unglazed bottom half would be buried in damp soil in the shade and the moisture would wick away the heat (unglazed, I expect, so the moisture can get into the pottery and cool the entire surface better).

    I suspect that the outer jar in your set up might actually act as an insulator reducing the loss of heat to the environment.

    You could just pop the cans/bottles into a plastic bag and tie a rope to that before dropping it into a full water butt. The amount of BTUs needed to raise all that water one degree usually means that if your butts shaded it should be nice and cool.
    Last edited by Jay-ell; 17-09-2019 at 09:41 AM.
    Snoop Puss, 1Bee and Baldy like this.

    New all singing all dancing blog - Jasons Jungle

    ”I have not failed 1,000 times. I have successfully discovered 1,000 ways to NOT make a light bulb."
    ― Thomas A. Edison

    “Negative results are just what I want. They’re just as valuable to me as positive results. I can never find the thing that does the job best until I find the ones that don’t.”
    ― Thomas A. Edison

    - I must be a Nutter,VC says so -

  4. #20
    Baldy's Avatar
    Baldy is online now Early Fruiter
    Join Date
    Apr 2016
    Location
    North Devon
    Posts
    3,695
    Blog Entries
    1

    Default

    Quote Originally Posted by Cadalot View Post
    I keep cans in the back of the shed in a cupboard draw and they stay cold even in this hot summer we have but I also have a USB Mini Fridge and a charging battery that I can plug it into to make it even colder.

    Look on Amazon for a Fridge-Scenstar-Cooler-Beverage-Refrigerator
    I had high hopes, but it seems it would only hold one can of lemonade... I might need to start drinking irn-bru

    https://www.youtube.com/watch?v=il0W2crWPWc

    Snoop Puss likes this.

    1574 gin and tonics please Monica, large ones.

  5. #21
    Baldy's Avatar
    Baldy is online now Early Fruiter
    Join Date
    Apr 2016
    Location
    North Devon
    Posts
    3,695
    Blog Entries
    1

    Default

    Most of my barrels hold various concoctions... perhaps I need one with nothing but cool refreshing water as god intended... for cooling other refreshments. Might be the easiest way to go... though I've got a couple of car batteries a solar charger and an inverter looking for something useful to do.
    Nicos and Snoop Puss like this.

    1574 gin and tonics please Monica, large ones.

  6. #22
    Baldy's Avatar
    Baldy is online now Early Fruiter
    Join Date
    Apr 2016
    Location
    North Devon
    Posts
    3,695
    Blog Entries
    1

    Default

    Most of my barrels hold various concoctions... perhaps I need one with nothing but cool refreshing water as god intended... for cooling other refreshments. Might be the easiest way to go... though I've got a couple of car batteries a solar charger and an inverter looking for something useful to do.

    1574 gin and tonics please Monica, large ones.

  7. #23
    Baldy's Avatar
    Baldy is online now Early Fruiter
    Join Date
    Apr 2016
    Location
    North Devon
    Posts
    3,695
    Blog Entries
    1

    Default

    I'm seeing double already and its only Tuesday.
    Snoop Puss, 1Bee and Cadalot like this.

    1574 gin and tonics please Monica, large ones.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts