Dry ice in ice boxs
Submitted: Thursday, Jun 24, 2004 at 22:59
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Member - JohnR (Vic)
Folks,
Before we went tripping I asked about dry ice in ice boxes and I thought I shoud tell you what happened.
Had a 52 litre box with 40mm walls or there abouts. lined the bottom with a fruit box of foam about 25mm eaxtra. Topped it with 20 kg of dry ice and stomped it down with a rubber mallet. We then put in the frozen goods and seeded it with some more dry ice in the gaps.
It only lasted 5 days and could hardly be seen to be worth it. The frozen goods were
well frozen but the evaporation rate with the ice at -76 degrees was too great for the extra we needed. There was condensation on the outside of the box so it meant that was colder than the surrounding area. That was only above the height of the foam inside.
We swithced the frozen stuff to the Engel on freeze and used the ice box with party ice for 5 days fo chilling after that. That got us across
the desert anyway.
Reply By: Swerv - Friday, Jun 25, 2004 at 21:03
Friday, Jun 25, 2004 at 21:03
Hi folks
On the subject of dry ice. I have just returned from a trip to
Rainbow Beach. Seeing as though I don't have a fridge, I decided to use a block of Dry Ice that was intended to be last eight days. It cost about forty dollars. The guy who sold it to me was very helpful and I followed his advice. Here's what to do.
Put a layer of party ice in the bottom of the esky.
Leave the dry ice wrapped up in the newspaper that it comes in.
Place a wet tea towel over the dry ice.
Cover the dry ice in some more party ice.
Sprinkle a handful of ordinary salt over the top of it all.
This has a sealing effect on the whole lot. The gas from the dry ice blends with the party ice and keeps everything as a solid block for as long as the dry ice lasts. In my case I still had frozen snags at the end of eight days.
Worked like a charm for me. Now if your wondering what I was doing eating snags on a great beach. The answer is I didn't catch any fish. Such is life.
Regards Merv.
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Follow Up By: Member - JohnR (Vic) - Saturday, Jun 26, 2004 at 00:23
Saturday, Jun 26, 2004 at 00:23
Interesting Post Merve, thank you.
I paid $2 a kilo for the dry ice. I wonder if you know what you paid for yours? I guess you had a lower heat gain to evaporate
the block than we did which helped you. The thing about ice or dry ice is the space it takes up in the box and the weight of it all and whether it makes all the product wet too.
I am sorry you had to eat snags though..............
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