Fridge Temps
Submitted: Thursday, Mar 27, 2003 at 07:52
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Time
Have had lots of different
views on what is the ideal temp to run a portable fridge on, but not freeze the contents (a mixture of food stuffs and drinks).
Seems some run at + 1 degree, others at +2 or +3, and some as high as +4 or 5. I notice the people who are running the lower temps tend to have more kids, so I guess the fridge is being opened more often.
Obviously the lower the temp the higher the power consumption.
Any comments?
Cheers
Buggerlux
Reply By: David - Thursday, Mar 27, 2003 at 08:45
Thursday, Mar 27, 2003 at 08:45
Most perishables (milk/meat etc) will last far far longer at 1 degree than at 4 or 5. Eg:milk will last 2 weeks at 1 degree, only a few days at 5. If power is your main concern then run the higher temp- if you want meat, milk etc to last, then use as close to zero as you can get without freezing your veges etc. It's your choice- and the situation will probably vary depending on your individual needs.
I suggest you get a good thermometer though- there are good digital ones available at Jaycar/Tandy/Dicksmith etc with a wire and probe.
AnswerID:
16220
Follow Up By: Time - Thursday, Mar 27, 2003 at 09:23
Thursday, Mar 27, 2003 at 09:23
David
Thanks for that.
I have a Dick Smith inside/outside thermometer which allows setting of maximum and mininmum ranges and can be set to set off an alarm if temps fall outside of those ranges.
My experience with the fridge running on 12 volts has been limited to a few days at a time (2 or 3), so spoilage has not really been a problem so far. I've tried to run at no greater than +3 degrees.
I guess I'll experiment with the life of my battery at +1 degree setting and see how it goes.
Cheers
Buggerlux
FollowupID:
9950
Reply By: Grinner - Thursday, Mar 27, 2003 at 09:33
Thursday, Mar 27, 2003 at 09:33
I usually have in
mine a mixture of frozen meat and general drinks and food stuffs. I run
mine at -4 and stack the frozen stuff around the edges of the fridge. This keeps the meat frozen, and the other stuff cold. Ocasionally end up with something frozen that shouldn't be.
Grinner
AnswerID:
16223
Reply By: Gordon - Thursday, Mar 27, 2003 at 12:32
Thursday, Mar 27, 2003 at 12:32
Buggerlux
If you've got the room, a freezer and esky combination works great. We run 40L Engel at -10C and have a separate 40L esky. The esky uses 4 large freezer blocks which we swap every morning after breaky so that 2 are re-freezing and 2 are cooling the esky. At this time we also remove meat for dinner so we minimise the number of times the freezer is oopened. This system allows us to carry enough meat for a 1 month trip. Another advantage is that the esky stays dry compared with using ice. Even in the hot outback the freezer blocks never thaw. We put a few beers in the freezer at about 4pm each day so they are chilled in time for "sundowners". Hope this gives you some ideas.
AnswerID:
16237
Reply By: dougie - Thursday, Mar 27, 2003 at 12:46
Thursday, Mar 27, 2003 at 12:46
I am like the previos guy, freeze the meats on the bottom and carry longlife milk and put it in the fridge daily $1 alitr on special.Only prob is fruit and veg I use canned and dry and use fresh for as long as it lasts.
I camped on the liechart for 2 weeks and had fresh for most of the time. Had to go to
Burketown once (ran out of beer) and stocked up with only fresh fruit and a few vegies. spuds onions and carrotts etc keep in a dark place maybe in a calico bag,Cucumbers tomatoes, keep in the top of the fridge. Put beer in at about 3 hour to drink time at 1 degree and everything is hunky doree!!Take canned drinks.
AnswerID:
16241
Reply By: Time - Thursday, Mar 27, 2003 at 12:53
Thursday, Mar 27, 2003 at 12:53
Found some interesting info on food storage at
www.dfst.csiro.au/handling.htm
Following is a precise of their recommended storage temps
Recommended refrigeration storage temperatures for some foods
Food Storage temperature °C Shelf life in the
home
Seafoods 0 - 3 3 days
Crustaceans & Molluscs 0 - 3 2 days
Meat 0 - 3 3-5 days
Minced meat & Offal 0 - 3 2-3 days
Cured meat 0 - 3 2-3 weeks
Poultry 0 - 3 3 days
Fruit juices 0 - 7 7-14 days
Milk 1 - 7 5-7 days
Cheers
Buggerlux
Cream 1 - 7 5 days
Cheese 0 - 7 Variable (1-3 months)
Butter 0 - 7 8 weeks
Oil & Fat 2 - 7 Variable (6 months)
Margarine 2 - 7 Variable (6 months)
Chilled meats and
meal components 0 - 3 No longer than
'use by' date
Leftovers 0 - 3 3-5 days
AnswerID:
16243
Reply By: Groove - Thursday, Mar 27, 2003 at 15:12
Thursday, Mar 27, 2003 at 15:12
Hi
Red meat lasts quite a while for me when vacum sealed. Alot of butchers do this (especially in country areas) and it makes an incredible difference. I think this is also called cryovacing (something like that). I have had no problem in my little Waeco frodge keeping meat for up to 3 weeks not frozen ( I have never needed to
test it beyond that)
Dont confuse the packaging you get pre-packed meat from the
supermarket in with vacum sealed. The vacum sealed packaging is a very tough plastic bag that is heat sealed.
As already mentioned I use the long life milk as
well and it lasts for ages
Cheers
Groove
AnswerID:
16256
Reply By: Phil G - Thursday, Mar 27, 2003 at 16:30
Thursday, Mar 27, 2003 at 16:30
I also get cryovac meat. Most butchers will do it for you. I select the meat I want and get each meal in a separate cryovac. Its mess free and actually keeps for several months at fridge temps - no need to run a freezer.
Also I run my engel at 1-2 degrees measured low down at the rear with a digital thermo probe. I velcro the unit to the front of the fridge.
AnswerID:
16267
Reply By: Scott - Thursday, Mar 27, 2003 at 19:26
Thursday, Mar 27, 2003 at 19:26
We run our fridges at 4c to 6c as required by the health authorities. I am paranoid to ensure our fridges in the bus are held at the correct tempreture. I have recording digital thermometers that keep track over 24 hours that I
check every afternoon before cooking to make sure they are always right. Run the Cryovac meat fridges and beer fridge at 2c to 3c.
AnswerID:
16282
Reply By: brian - Thursday, Mar 27, 2003 at 20:26
Thursday, Mar 27, 2003 at 20:26
Time all the above are good but for interest try measuring temps at various positions within the unit,in
mine there are signifigant differences,find the warmest point,away from walls as use this as your reference point to apply settings,then everything should be the right degree of cold.
happy camping and cold beer.
AnswerID:
16287
Reply By: ROX - Friday, Mar 28, 2003 at 01:05
Friday, Mar 28, 2003 at 01:05
To save on power I run fridge flat out whilst traveling 1-3 hours then turn it down when stoped.
AnswerID:
16303
Reply By: joc45 - Saturday, Mar 29, 2003 at 17:04
Saturday, Mar 29, 2003 at 17:04
I too use cryovac meat, and it has kept ok for 5 weeks at about 1-2deg. Just goes a bit darker, but it is fine. Also means no bloody mess in the bottom of the fridge. Butchers do not recommend keeping cryovac chicken for more than a few days.
What you need to watch is the temp at the bottom of the fridge. Earlier (but not the latest) 39L Engels had a chiller plate which only went 2/3 of the way down. The result was that the food at the bottom could get warmer than that further up. Not a problem if air can circulate, but if the bottom is packed with solid stuff like meat, then conduction is the only way to transfer the heat out. This was particularly noticeable when operating as a freezer - I had trouble getting the bottom to stay frozen, whereas the rest was nicely frozen. The new Engels are fine.
rgs
Gerry
AnswerID:
16388
Reply By: Bob Y. - Saturday, Mar 29, 2003 at 21:12
Saturday, Mar 29, 2003 at 21:12
B'lux, We have a couple of coolrooms that run at 2-4 degrees, that we store fruit, veges and big mobs of beef. Everything lasts
well, the beef hangs for up to a month. The beef gets a bit hairy when the coolroom needs a clean.
Have an Engel 40L that we run on #1, on the few times we use it. Hooroo...
AnswerID:
16403