AR15.Com Archives
 How long will it stay cold? *with pics*
Nulllogik  [Team Member]
7/10/2010 9:29:03 AM EST
OK

So the thread about wanting to keep a bunch of soda cold in a car for three weeks gave me inspiration for a hurricane season experiment...

How long can I keep something cold in my little Omaha Steaks Styrofoam cooler?

So I went and got:

Small 6pack of Dr Pepper
Bag O' Ice
~ 7 lbs of dry ice

















So hopefully through this, I can see how long I can keep a decent amount of meat from going bad in a power-out situation.

This will be kept outside on the patio, in the shade, temps should be in the 80s and 90s.

Update:
Day 0: Temperature inside cooler was about 12*F Thermometer was hitting nothing, probably didnt leave it in long enough to get the proper temperature.
Morning, Day 1: Temperature inside cooler was about 5*F Thermometer was hitting ice.
Afternoon, Day 2: Temp inside cooler was about 27*F I think all of the dry ice is gone by now. Current temp is 95*F
Evening, Day 3: Temp inside cooler was about 40*F

Im going to open it

Still frozen, water/soda temp at about 32*F

Evening, Day 4: Temp of water is 50*F 3 cans burst Dr Pepper is good
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gomulego  [Team Member]
7/10/2010 9:31:49 AM EST
2 days max
N1Rampage  [Team Member]
7/10/2010 9:32:51 AM EST
You will be opening and closing it? I say it could last well over a week if kept 100% sealed and kept closed.
OKIE-CARBINE  [Team Member]
7/10/2010 9:33:51 AM EST
tagaroo

shouda threw a little thermometer in there
Hawken50  [Team Member]
7/10/2010 9:37:28 AM EST
Hmmm. dry ice is, what -100f? Those cans freeze and pop yet?
pseudojd  [Team Member]
7/10/2010 9:47:42 AM EST
you need to get a thermometer probe in there. open and close will disturb the science.
fiver  [Life Member]
7/10/2010 9:50:17 AM EST
Where will it be stored? What is the ambient air temperature?
Kuraki  [Team Member]
7/10/2010 9:56:01 AM EST
How long will it stay cold? What is cold? 35F? 60F? Cold is subjective.

Someone with the ambient temperature, the mass of dry ice, and the R level of the styrofoam could tell you pretty accurately when it would hit what temperature.


JTWO  [Member]
7/10/2010 10:08:20 AM EST
We just went on a trip to Lake Powell and kept meat cold the whole week using dry ice and frozen milk jugs in a cooler that we were getting in and out of constantly. We wrapped the dry ice with a couple paper bags to keep it insulated. Temps at Lake Powell were mid 80's-low 90's the whole time.........
By the end of the week we would've needed more ice though.........
I've heard of guys putting frozen jugs and dry ice in a cooler then filling it with saw dust to keep the ice insulated which helps it stay cooler for a longer period of time. Might give that a try next time......
connor327  [Member]
7/10/2010 10:10:13 AM EST
probably 3 days is pushing it
oldschool63  [Team Member]
7/10/2010 10:11:01 AM EST
87 hrs
Vicinity  [Member]
7/10/2010 10:13:54 AM EST
A few days.

Originally Posted By Kuraki:
How long will it stay cold? What is cold? 35F? 60F? Cold is subjective.

Someone with the ambient temperature, the mass of dry ice, and the R level of the styrofoam could tell you pretty accurately when it would hit what temperature.




Cold = drinkable, so I'd say below 55 degrees, 40 being probably the best.

He was talking about steaks, so below 45 at least.
Nulllogik  [Team Member]
7/10/2010 10:15:12 AM EST
Originally Posted By Kuraki:
How long will it stay cold? What is cold? 35F? 60F? Cold is subjective.

Someone with the ambient temperature, the mass of dry ice, and the R level of the styrofoam could tell you pretty accurately when it would hit what temperature.




Absolutely cold is subjective, I dont have a thermometer

Ambient temperature is Broward County S. Florida outdoors in the shade.

Not sure of the R level, but its almost 2" thick.

When I left Publix, I had bought 6.88 lbs. of dry ice, so Id say theres at least 6lb in there now, along with a 5-10 lb bag of ice.

Ill open it in a week, maybe throw in a couple ice cubes from the freezer to offset the warm air I swapped for the cold air.



If this goes for at least a week, im going to try to make a large cooler about 3-4 inches thick with Styrofoam, kinda like a thick Yeti cooler.
Kuraki  [Team Member]
7/10/2010 10:15:40 AM EST
Originally Posted By Vicinity:
A few days.

Originally Posted By Kuraki:
How long will it stay cold? What is cold? 35F? 60F? Cold is subjective.

Someone with the ambient temperature, the mass of dry ice, and the R level of the styrofoam could tell you pretty accurately when it would hit what temperature.




Cold = drinkable, so I'd say below 55 degrees, 40 being probably the best.

He was talking about steaks, so below 45 at least.


No steaks, that's the brand of cooler.
Nulllogik  [Team Member]
7/10/2010 10:16:13 AM EST
Originally Posted By Vicinity:
A few days.

Originally Posted By Kuraki:
How long will it stay cold? What is cold? 35F? 60F? Cold is subjective.

Someone with the ambient temperature, the mass of dry ice, and the R level of the styrofoam could tell you pretty accurately when it would hit what temperature.




Cold = drinkable, so I'd say below 55 degrees, 40 being probably the best.

He was talking about steaks, so below 45 at least.




I was thinking about how to word that...
armoredsaint  [Team Member]
7/10/2010 10:16:41 AM EST

Originally Posted By Hawken50:
Hmmm. dry ice is, what -100f? Those cans freeze and pop yet?


Kuraki  [Team Member]
7/10/2010 10:17:02 AM EST
Originally Posted By Nulllogik:
Originally Posted By Kuraki:
How long will it stay cold? What is cold? 35F? 60F? Cold is subjective.

Someone with the ambient temperature, the mass of dry ice, and the R level of the styrofoam could tell you pretty accurately when it would hit what temperature.




Absolutely cold is subjective, I dont have a thermometer

Ambient temperature is Broward County S. Florida outdoors in the shade.

Not sure of the R level, but its almost 2" thick.

When I left Publix, I had bought 6.88 lbs. of dry ice, so Id say theres at least 6lb in there now, along with a 5-10 lb bag of ice.

Ill open it in a week, maybe throw in a couple ice cubes from the freezer to offset the warm air I swapped for the cold air.



If this goes for at least a week, im going to try to make a large cooler about 3-4 inches thick with Styrofoam, kinda like a thick Yeti cooler.


I'm guessing it will stay <55F for 3 days.

What do we win if we're right?
Nulllogik  [Team Member]
7/10/2010 10:23:21 AM EST
Originally Posted By Kuraki:
Originally Posted By Nulllogik:
Originally Posted By Kuraki:
How long will it stay cold? What is cold? 35F? 60F? Cold is subjective.

Someone with the ambient temperature, the mass of dry ice, and the R level of the styrofoam could tell you pretty accurately when it would hit what temperature.




Absolutely cold is subjective, I dont have a thermometer

Ambient temperature is Broward County S. Florida outdoors in the shade.

Not sure of the R level, but its almost 2" thick.

When I left Publix, I had bought 6.88 lbs. of dry ice, so Id say theres at least 6lb in there now, along with a 5-10 lb bag of ice.

Ill open it in a week, maybe throw in a couple ice cubes from the freezer to offset the warm air I swapped for the cold air.



If this goes for at least a week, im going to try to make a large cooler about 3-4 inches thick with Styrofoam, kinda like a thick Yeti cooler.


I'm guessing it will stay <55F for 3 days.

What do we win if we're right?


Unfortunately nothing

If I had a good thermometer so I could keep it sealed and some type of system that would stop a counter when it got above a given temp. I would do it.

But I dont.

I did think about that while doing this though
LePew  [Member]
7/10/2010 10:26:45 AM EST
run down to the grocery store and get one of those pointy food thermometers, and poke it through a hole in the cooler.
take it out when not measureing, and plug the hole (the thermometer will conduct heat in to the cooler and reduce the cold-time)
fiver  [Life Member]
7/10/2010 10:28:45 AM EST
$15. You can find one even cheaper than that if you look.



http://www.amazon.com/Timex-TX5170-Outdoor-Thermometer-Hygrometer/dp/B000HU8BHM/ref=sr_1_1?s=electronics&ie=UTF8&qid=1278790036&sr=1-1
Nulllogik  [Team Member]
7/10/2010 10:29:14 AM EST
Originally Posted By LePew:
run down to the grocery store and get one of those pointy food thermometers, and poke it through a hole in the cooler.
take it out when not measureing, and plug the hole (the thermometer will conduct heat in to the cooler and reduce the cold-time)


Awesome Idea, Ill put a little dot on it for room temp: ~75*

Put it in the fridge for an hour and put another dot: ~(Cold)*

Stick it in the cooler and put tape over the hole...


Nulllogik  [Team Member]
7/10/2010 10:36:30 AM EST


I may be getting one of those as well later in the week
LePew  [Member]
7/10/2010 10:42:04 AM EST
This is what I was thinking of:

Thermometer

Poke it through, with the dial on the outside, and you can read the temp directly.
Nulllogik  [Team Member]
7/10/2010 10:45:12 AM EST
Originally Posted By LePew:
This is what I was thinking of:

Thermometer

Poke it through, with the dial on the outside, and you can read the temp directly.


If Im heading out later, ill see if they have one local to me... I just have a cheapy oven thermometer.
RDP  [Team Member]
7/10/2010 10:46:16 AM EST
I have a large cooler that does good at keeping stuff cold for 3 days +. The manufacturer recommends the drain be slightly cracked to keep the water from staying in the cooler.

How did you separate your dry ice and regular ice?

Vicinity  [Member]
7/10/2010 10:47:49 AM EST
Originally Posted By Kuraki:
Originally Posted By Vicinity:
A few days.

Originally Posted By Kuraki:
How long will it stay cold? What is cold? 35F? 60F? Cold is subjective.

Someone with the ambient temperature, the mass of dry ice, and the R level of the styrofoam could tell you pretty accurately when it would hit what temperature.




Cold = drinkable, so I'd say below 55 degrees, 40 being probably the best.

He was talking about steaks, so below 45 at least.


No steaks, that's the brand of cooler.


Browsed over the OP, I guess I didn't see the word "cooler", lol.
offshorebear  [Team Member]
7/10/2010 10:54:00 AM EST
For long trips, we tape the lid of coolers we aren't going to open. Every little bit to stop air flow helps.

Nulllogik  [Team Member]
7/10/2010 10:56:12 AM EST
Originally Posted By offshorebear:
For long trips, we tape the lid of coolers we aren't going to open. Every little bit to stop air flow helps.



Forgot to mention the lid is taped
Nulllogik  [Team Member]
7/10/2010 10:57:39 AM EST
Originally Posted By RDP:
I have a large cooler that does good at keeping stuff cold for 3 days +. The manufacturer recommends the drain be slightly cracked to keep the water from staying in the cooler.

How did you separate your dry ice and regular ice?



Im keeping every last bit of cold mass as possible in there for this

I just propped up the dry ice on the outside and put the cans/ice in the middle.

Theres probably a better way to do it, but for this experiment, I wanted to do it this way...
Vicinity  [Member]
7/10/2010 11:08:01 AM EST
Originally Posted By Nulllogik:
Originally Posted By RDP:
I have a large cooler that does good at keeping stuff cold for 3 days +. The manufacturer recommends the drain be slightly cracked to keep the water from staying in the cooler.

How did you separate your dry ice and regular ice?



Im keeping every last bit of cold mass as possible in there for this

I just propped up the dry ice on the outside and put the cans/ice in the middle.

Theres probably a better way to do it, but for this experiment, I wanted to do it this way...


As long as you have some water in there, but only a VERY little, it'll work well for a while.
echo6  [Life Member]
7/10/2010 11:08:55 AM EST
Originally Posted By Nulllogik:
Originally Posted By LePew:
This is what I was thinking of:

Thermometer

Poke it through, with the dial on the outside, and you can read the temp directly.


If Im heading out later, ill see if they have one local to me... I just have a cheapy oven thermometer.


Publix carries a digital version of those.IIRC their about $12.

Nulllogik  [Team Member]
7/10/2010 11:41:39 AM EST
Originally Posted By echo6:
Originally Posted By Nulllogik:
Originally Posted By LePew:
This is what I was thinking of:

Thermometer

Poke it through, with the dial on the outside, and you can read the temp directly.


If Im heading out later, ill see if they have one local to me... I just have a cheapy oven thermometer.


Publix carries a digital version of those.IIRC their about $12.



The girlfriend had a handfull of 20% off coupons for bed bath and beyond, so I got an analog one from there.

Temp readings shortly...

ETA: Air temp in cooler is: 12*F
Air temp outiside is: 93*F (Per iphone weather app)

Nightdriver  [Team Member]
7/10/2010 11:51:58 AM EST
87 hours











Tag for results
bookertbab  [Team Member]
7/10/2010 11:52:31 AM EST
Went fishing up in canada in a remote site. They had no electricity other than a generator they ran for one tank of gas a night. But they had an ice house with ice year round. The house is built over a pit and it is filled with sawdust. They pack the ice in it that they collect from the lake in the winter. It stays nice and frozen all year round.
BallisticTip  [Team Member]
7/10/2010 12:17:38 PM EST
Good experiment.
SouthEndXGF  [Team Member]
7/10/2010 12:21:40 PM EST
I had one of those omaha steak coolers delivered earlier this year as a gift from work (full of steak), and I was curious how long the dry ice would keep it cool, too. I'm guessing you'll last about 3 days there, based on my experience.
Nulllogik  [Team Member]
7/10/2010 1:19:01 PM EST
Originally Posted By SouthEndXGF:
I had one of those omaha steak coolers delivered earlier this year as a gift from work (full of steak), and I was curious how long the dry ice would keep it cool, too. I'm guessing you'll last about 3 days there, based on my experience.


Well, im going to check the temp with my trusty new thermometer every day in the evening and update then.

If this doesnt last at least a week, Im going to have to make something that will
Nulllogik  [Team Member]
7/11/2010 5:41:52 AM EST
Update in OP with morning temperature
THR-Thumper  [Team Member]
7/11/2010 5:51:56 AM EST
First post failed spectacularly to nail it.
pearson  [Team Member]
7/11/2010 7:14:08 AM EST
tag
Nulllogik  [Team Member]
7/12/2010 11:08:35 AM EST
Update, OP.

About 27*F
SISUltra  [Team Member]
7/12/2010 11:10:20 AM EST
Originally Posted By gomulego:
2 days max


This. Dry ice doesnt last very long. Regular ice lasts longer.
RustyBolt  [Member]
7/12/2010 11:14:52 AM EST
Does dry ice keep in the freezer?
THR-Thumper  [Team Member]
7/12/2010 11:17:33 AM EST
Originally Posted By SISUltra:
Originally Posted By gomulego:
2 days max


This. Dry ice doesnt last very long. Regular ice lasts longer.


It's been two days and it's still well below freezing. This might be the worst 'This' I've been forced to endure.

pdg45acp  [Team Member]
7/12/2010 11:21:21 AM EST
At least one of those cans should have split.
pyro6988  [Team Member]
7/12/2010 11:26:56 AM EST
I am guessing 4 days.
E-Mag  [Team Member]
7/12/2010 11:30:32 AM EST
Originally Posted By RustyBolt:
Does dry ice keep in the freezer?


maybe if your freezer can go to below −78.5 °C (−109.3 °F)
Nulllogik  [Team Member]
7/13/2010 3:37:26 PM EST
Update OP. Pics soon.

At least two cans burst, one is at least swollen up, but three are fine.




Still covered in ice.
Deej86  [Team Member]
7/14/2010 2:51:52 PM EST
tagged
numberofthebeast  [Team Member]
7/14/2010 2:53:56 PM EST
Wrap the cooler in bubble wrap completely. Then put it in a garbage bag filled with sawdust.
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