Dry ice cost only $1 /lb
You will be all set with 2lb
And you can ad extra insulation to you cooler

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On Mar 8, 2010, at 7:53 PM, Richard Koerner <rjkinpb@SBCGLOBAL.NET>
wrote:

> Dry ice would be too expensive; going to a nearby Ice Cream joint
> defeats my purpose; I want to have ice cream out in the middle of
> nowhere!!  One tip from the list was to realize that ice cream at 32
> F (as in packed in ice) is not the same as ice cream at 0 F (like in
> the refrigerator at home, which I assume is something like 0 F).
>
> OK....salt....that's my solution I think.  If I can prepare a saline
> "outer bath", just enough, not too much, and freeze it hard, it will
> utilize that "latent heat" thingee I once learned in school.  When
> it starts to thaw, it will be at much less than 32 F.  What's needed
> is a "phase change", going from solid ice to liquid, that's where
> the energy is.
>
> Will do a little internet research on the correct salt to water mix
> to allow freezing in my home refrigerator, perhaps do some
> experiments with little cups, and come up with the solution!  (If
> one exists..)  Maybe I should just go with chocolate ice cream...who
> doesn't like a cold and somewhat sloppy chocolate shake in the
> middle of the desert...doesn't have to be rock hard, right?
>
> Rich
> San Diego
>
> --- On Mon, 3/8/10, Joy Hecht <jhecht@ALUM.MIT.EDU> wrote:
>
> From: Joy Hecht <jhecht@ALUM.MIT.EDU>
> Subject: Re: Ice Cream Camping
> To: vanagon@GERRY.VANAGON.COM
> Date: Monday, March 8, 2010, 7:03 PM
>
> Dry ice is pretty easy to find in cities, I think (I've only bought in
> Boston).  A few lumps in your cooler will keep your ice cream very
> frozen
> for at least 24 hours, probably more.  I've bought it in order to
> Fedex
> people ice cream from time to time.  The ice cream arrived the next
> day hard
> as a rock with lots of dry ice still steaming away.
>
>
> Joy
>
>
>
> On Mon, Mar 8, 2010 at 9:36 PM, Don Hanson <dhanson928@gmail.com>
> wrote:
>
>>   Just go down to the Fudge Factory on the main street when you are
>> done
>> looking at flowers.  See Lee and the gals and have a cone or some
>> other
>> sweet thing and sit at his nice outdoor tables and watch all the
>> other
>> flower gawkers drive past...
>>    Don Hanson
>>
>> On Mon, Mar 8, 2010 at 5:58 PM, Richard Koerner
>> <rjkinpb@sbcglobal.net
>>> wrote:
>>
>>> Just had a brainstorm....what if I got a small 2 serving little
>>> plastic
>>> container, packed it with ice cream, put that container in bigger
>>> container, filled that with water, and froze the whole thing so as
>>> to
>>> encapsulate the inner container in a thick layer of ice (say about
>>> 1 inch
>>> thick or so)?
>>>
>>> Good enough for the first night out when packed in the cooler?  (My
>> Vanagon
>>> has no refrigerator, just a plastic Coleman ice chest...which
>>> meets all
>> my
>>> needs.)  Seems like it should work just fine.
>>>
>>> Just wondering if anybody has tried such a thing, or has any
>>> tips.  And
>> to
>>> inspire others.  (Going to Anza Borrego Desert park (southern
>>> California)
>>> this weekend for the spring wildflowers, daytime temps 76 F,
>>> nighttime
>> temps
>>> 50 F, new moon coming, lots of stars to watch)
>>>
>>> Rich
>>> San Diego
>>>
>>