Author Topic: Keep Ice Colder For Longer In Your Icebox  (Read 2932 times)

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Offline paul-gee

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Keep Ice Colder For Longer In Your Icebox
« on: December 22, 2016, 02:48:07 PM »
Dave Leslie shares his top 8 tips for keeping ice colder for longer in your icebox this summer.

https://www.snowys.com.au/blog/tips-for-keeping-ice-longer-in-your-icebox/



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Offline cetacean

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Re: Keep Ice Colder For Longer In Your Icebox
« Reply #1 on: December 22, 2016, 03:34:09 PM »
Standard operational procedure I would have thought  ???
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Offline BaseCamp

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Re: Keep Ice Colder For Longer In Your Icebox
« Reply #2 on: December 22, 2016, 07:42:47 PM »
Liked the comment about freezing seawater. ...   didn't know about that....

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Offline Alan Loy

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Re: Keep Ice Colder For Longer In Your Icebox
« Reply #3 on: December 22, 2016, 08:26:56 PM »
3. Add some salt to your ice

Adding salt to water before freezing lowers the freezing temperature of the water, meaning that your ice will actually be colder than frozen fresh water. Using sea water will work even better than adding your own salt to the water.

Is this true? I have heard both opinions so i wonder if there is any definitive answer  ???

Offline Patr80l

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Re: Keep Ice Colder For Longer In Your Icebox
« Reply #4 on: December 22, 2016, 08:35:49 PM »
3. Add some salt to your ice

Adding salt to water before freezing lowers the freezing temperature of the water, meaning that your ice will actually be colder than frozen fresh water. Using sea water will work even better than adding your own salt to the water.

Is this true? I have heard both opinions so i wonder if there is any definitive answer  ???
Not sure of the physics here but if the freezing point of salt water is lower it means that the change between liquid/solid states is lower, it doesn't mean salt ice is colder.    If the salt ice changes to liquid at a lower temperature then it means that as the temperature rises it turns to mush sooner.

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Offline Alan Loy

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Re: Keep Ice Colder For Longer In Your Icebox
« Reply #5 on: December 22, 2016, 08:38:55 PM »
I guess for me the question is - if I am making ice blocks for the esky should I put in salt or sawdust or something else or not bother?????

Offline BaseCamp

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Re: Keep Ice Colder For Longer In Your Icebox
« Reply #6 on: December 22, 2016, 09:14:10 PM »
I reckon go for the seawater as advised - I also liked the idea of using milk cartons so they will stack / wall up - and be better at sorting out the space?  Provided they don't leak...

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Offline Hewy54

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Re: Keep Ice Colder For Longer In Your Icebox
« Reply #7 on: December 22, 2016, 09:44:46 PM »
For the amount that it might lower the freezing point, not sure that using salt water is worth it.
I find it better to freeze 2 l containers filled with fresh drinking water before a trip. When they thaw use the water to drink and replenish ice as needed on the way.

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Offline mesuite77

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Re: Keep Ice Colder For Longer In Your Icebox
« Reply #8 on: December 23, 2016, 10:35:01 AM »
3. Add some salt to your ice

Adding salt to water before freezing lowers the freezing temperature of the water, meaning that your ice will actually be colder than frozen fresh water. Using sea water will work even better than adding your own salt to the water.

Is this true? I have heard both opinions so i wonder if there is any definitive answer  ???

The ice won't be any more or less cold when you pull it out of the freezer. The slurry formed as the ice melts however sits at the freezing point of the liquid so a salt water slurry will be slightly colder than a pure water slurry.
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Offline Green rv

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Re: Keep Ice Colder For Longer In Your Icebox
« Reply #9 on: December 23, 2016, 10:40:56 AM »
fresh water ice definitely taste better in a drink

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Offline Troopy_03

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Re: Keep Ice Colder For Longer In Your Icebox
« Reply #10 on: December 23, 2016, 11:04:21 AM »
I don't know about making the ice last longer, but salt water ice will make the contents of the esky colder. Ice will take energy, in the form of heat, from the surrounding environment as it melts, due to the energy required to go from solid state to liquid state. This means the esky contents will be cooled to a temperature, approaching the temperature of the solid to liquid transition of the ice. Because saltwater has a lower freezing temperature than freshwater, the temperature that the esky contents will be drawn down to is lower than it would be for freshwater ice.

Simples eh?  ;D
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Re: Keep Ice Colder For Longer In Your Icebox
« Reply #11 on: December 23, 2016, 07:50:31 PM »
For the amount that it might lower the freezing point, not sure that using salt water is worth it.
I find it better to freeze 2 l containers filled with fresh drinking water before a trip. When they thaw use the water to drink and replenish ice as needed on the way.
this method kills two birds with one stone. ice an drinking water

Offline MDS69

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Re: Keep Ice Colder For Longer In Your Icebox
« Reply #12 on: December 23, 2016, 07:54:01 PM »
stubbies of beer chilled in fresh water ice definitely taste better in a drink

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Offline NewieCamper

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Re: Keep Ice Colder For Longer In Your Icebox
« Reply #13 on: December 23, 2016, 08:14:50 PM »
I remember the days when we used to wait for the milk to thaw for breakfast early on in the trip. Dad froze everything he could before packing it in, including making big blocks in icecream containers. Never bought ice unless we were away for long enough for the esky to get too warm though.