On Sun, 7 May 2017 10:22:13 -0700 (PDT), wrote:

On Fri, 5 May 2017 04:56:35 -0000 (UTC), James Waldby
wrote:

On Thu, 04 May 2017 12:39:10 -0700, mike wrote:
On 5/4/2017 9:39 AM, etpm@whidbey... wrote:
On Thu, 04 May 2017 12:16:27 -0400, clare@snyder... wrote:
On Thu, 04 May 2017 08:48:11 -0700, etpm@whidbey... wrote:

All over YouTube are examples of folks using either air conditioner
compressors or refrigerator compressors for vacuum pumps. [... I'm]
thinking of using one for vacuum infusing stuff. Like food. And also
of vacuum storage of dried foods. [...]
So what are the disadvantages of using a
repurposed refrigeration compressor

How are you going to address the lubrication of the compressor? In a
refrigeration system the lubricant circulates with the refrigerant to
circulate through the cyls. When used as a vacuum pump this does not
happen.

Will it work? Sure - for a while. How long? Who knows - but
the pump will deteriorate with use.

Actually, from what I have seen on YouTube, the compressor gets
adequate lube, especially the [reefer] types which actually have the
motor submerged in oil.

Won't you be sucking a lot of moisture? That can't be good.
I'd at least think about the possibility of getting vapors
from the compressor back into your food.

Educate me on the value of high vacuum food preservation.
For bag sealing like seal-a-meal, the purpose of the vacuum is to
EXCLUDE air by forcing the plastic into contact with solid chunks
of food, like chicken breast.
Once contact has been achieved, higher vacuum has no purpose.
I suggest it's a detriment.
The higher the vacuum, the more likely you'll hasten the exit
of water from the food into any voids that exist.
[...] A nitrogen purge might be better than trying to extract the
oxygen directly with a vacuum pump.
...

If the goal is storing frozen foods while avoiding freezer burn,
pulling the air out of aluminized mylar or thick polyethylene
sacks, then heat-sealing, is ok; if that's properly done, foods
keep ok months to years.

Yeah, but what's actually 'good'? Don't only the pro's do stuff like that for the service or for astronauts or for museums? It seems like food that old would eventually taste like a building material or like styrofoam or polystyrene. I mean, its not like you'll be eating at the Waffle House. It seems like it would be just easier to run across to another state where there is food or something.


Do you know what a EMP device set off over Kansas will bring?

http://www.shtfplan.com/emergency-pr...tates_06202011

Go ahead...walk to the next state..and the next one..and the next one.

Million of people will be dead inside of 6 months, and then winter
will hit, and millions more will simply..freeze to death.

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