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General => General Discussion => Topic started by: Rusty on February 22, 2015, 04:25:08 PM

Title: Making block ice
Post by: Rusty on February 22, 2015, 04:25:08 PM

Hi guys and girls

I am making some block ice for a up coming fishing trip and I was wondering if anyone adds salt to the water to make it last longer.

Does it work like putting rock salt over the top of your Ice or not

Rusty

Title: Re: Making block ice
Post by: dales133 on February 22, 2015, 04:46:37 PM

Freeze salted water.
I've never made my own but I used to buy salt flake ice and it lasts miles longer

Title: Re: Making block ice
Post by: jr on February 22, 2015, 05:07:09 PM

Turn your freezer right down helps too.

Title: Re: Making block ice
Post by: Garfish on February 22, 2015, 05:51:46 PM

The science on this is, no,  it won't help, as salty water defrosts at a lower temp than pure water, ie it may melt at -1 whilst pure water would melt at zero which Is why we have icebergs, pure water floating in saltwater...

Title: Re: Making block ice
Post by: muzza01 on February 22, 2015, 06:18:12 PM

Salt will melt your ice a lot faster.

Title: Re: Making block ice
Post by: jetcrew on February 22, 2015, 06:20:17 PM

 takeing salted ice on a fishing trip ...that wont impress your mates at all rusty..

Jet ;D ;D

Title: Re: Making block ice
Post by: DrewXT on February 22, 2015, 06:24:36 PM

To make block ice, boil the water before pouring it into your container... It'll freeze faster and better...

It's because the state of the molecules in the water are closer when frozen or boiling than at room temperature... ;)

Sent from my GT-I9505 using Tapatalk

Title: Re: Making block ice
Post by: austastar on February 22, 2015, 06:32:03 PM

Hi,
   Freeze a slurry of water (86%) and sawdust (14%) by weight, into blocks or in plastic bottles (allow for expansion).


It is called Pykecrete.

 (http://www.google.com.au/search?q=pyrite+uses&oq=pikecrete&aqs=chrome.4.69i57j0l5.9850j0j8&sourceid=chrome&es_sm=122&ie=UTF-8#q=pykrete)

Title: Re: Making block ice
Post by: Mangrovematt on February 22, 2015, 06:47:21 PM

I stuff heaps of shredded newspaper into 3 lt milk bottles, fill with water and the longer you can freeze them, the longer they seem to last,

Title: Re: Making block ice
Post by: Rusty on February 22, 2015, 07:04:52 PM

Ok think I will just freeze water from the tap have the deep freeze turned right down

Rusty

Title: Re: Making block ice
Post by: Barrabart on February 22, 2015, 07:16:53 PM

G'day Rusty,

I recomend using old Long Life Milk cartons, empty them, by whatever means u see fit....... clean them out and just fill with fresh water.... the cartons are a nice rectangular block and a handy size for packing in and around the esky. i think the material they're made from with the alfoil type of inner lining helps insulate the ice...... and being fresh water, if required u can drink it. Oh and i reckon stick them in the deep freeze for at least 7 days..... this ensures they are well and truly deep frozen......

Title: Re: Making block ice
Post by: paceman on February 22, 2015, 07:39:38 PM

had this same issue a while ago, this worked for me...

http://www.myswag.org/index.php?topic=36237.msg581368#msg581368 (http://www.myswag.org/index.php?topic=36237.msg581368#msg581368)

Title: Re: Making block ice
Post by: Beachman on February 23, 2015, 09:27:09 AM

The best homemade ice we have ever made in using old cask wine bladders as I believe the silver foil helps, but downside is they are an odd shape.

Now when I know a trip is coming up, I just freeze tap water in ice cream containers and keep them at the bottom of the deep freeze for 3 or 4  weeks beforehand.

Title: Re: Making block ice
Post by: Jeepers Creepers on February 23, 2015, 04:00:52 PM

Hey Rusty, I did this a while back and tested mythbusters style which lasted longer etc.

Don't worry about the salt, it wasn't worth the effort...trust me.

Title: Re: Making block ice
Post by: Bird on February 23, 2015, 04:12:49 PM

get an old keg, and fill it 75% water 15% dry ice.

I have no idea what it will do, but **** the keg will be cold