It does actually, tho its been dumbed down like with so many sales speils.
Just replace the new air that has just entered when the lid was opened
with dry air that has been passed over the chiller coils so the frost
doesnt form inside the freezer where it gets deposited on the food etc.
Thats how the frost free system works.
They arent self defrosting, they just ensure that the frost never forms inside
the air deposits the mosture outside the freezer before it gets into the freezer.
Thats how any frost free system works.
Both types have pros and cons - I've always been under the impression
that the upright types allow a lot of coldness to 'escape' when the
door is open compared to chest freezers.
Just how this impacts on electricity usage in the real world, I don't
know. *If* it does at all...
The big downside with chest freezers you've already mentioned :)
OTOH, if you have a need to put something large in a freezer (the
neighbours body... or whatever) - then the chest freezer would be
I currently have a chest freezer, but am considering an upright as a
The same way anything else has weight. Did you really think that air weighs
BTW, there's no such thing as "non-pressurized air". The air you're breathing
right now has a pressure of 1 atmosphere, equal to about 14.7 pounds per
On Thu, 03 Jun 2010 13:40:45 GMT, Doug Miller wrote:
Yes. All my scales currently read "0". Yet sitting on top of
them are billions of cubic feet of air.
OK, So I had to look it. I don't know the logic behind it, but 1
cubic foot of air at standard temperature and pressure assuming
average composition weighs approximately 0.0807 lbs.
So to understand your comment, one would have to know the weight
of 0F (approximately) air and then convert that to cubic feet to
get any sort of sense what the fuck you actually mean.
Anybody know that off the top of their head? (Some dumbass will
of course look it up, post it, and claim they knew it. but this
is Usenet - shit like that is a given).
You'd need a gravity scale. lol
Actually you lose it all... if your upright freezer is a 10 cuft model
within 2 seconds of opening the door ALL 10 cuft of cold air drops out
like it was a lead balloon (minus however much cuft your food
With a chest freezer in still ambiant air practically zero cuft of air
drops out, even if there is no door. Most stupidmarket food
freezers/fridges are chest type and have no door... instead they have
a fill line and many have add-on deflectors to block air agitation.
Food stores are more and more moving away from upright freezer/fridge
Assume the freezer is half full (5 cu ft food, 5 cu ft air). Five cubic feet
of food weighs about 250 pounds. Five cubic feet of air weighs about seven
Do you *really* believe that replacing seven ounces of zero-degree air with
seven ounces of room temperature air is going to make *any* noticeable
difference in the temperature of two hundred fifty pounds of food???
On Fri, 04 Jun 2010 13:49:54 GMT, email@example.com (Doug Miller)
Guess what? It makes a positively huge difference when that warm air
hits the surface of all that stuff that you are trying to keep in as
perfect condition as possible for long term storage. The added
moisture is another huge benefit.
On Fri, 04 Jun 2010 08:53:10 -0400, brooklyn1 wrote:
All the freezers and fridges in the isles (100-150 feet long x 4
rows), milk/dairy, and beer (about 80% of the store) are clearly
the upright variety (doors and no doors). The only exceptions are
the chests in front of the meat displays.
Good thing they have windows so you can see what is inside before you
use a sawzall to gain entry.
I prefer freezers with doors wether it is an upright or chest.
Makes gaining entry so much easier than the sealed types.
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