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swampyankee
2012-Aug-10, 12:25 PM
My health-conscious daughter (she has two chronic medical conditions, so she is very conscious of health and nutrition for very good reasons) recently purchased a jar of powdered peanut butter. Obviously, it's peanut based (that's the only ingredient), but grinding peanuts produces peanut butter, with all the oil.

Any ideas how one goes from peanut butter (full of peanut oil) to peanut butter powder?

HenrikOlsen
2012-Aug-10, 12:50 PM
Dip it in liquid nitrogen, then hit it with a hammer?

Keeping it powdered is something else.

LookingSkyward
2012-Aug-10, 12:53 PM
Tried (briefly) to find info on the web... seems the oil is removed before the powdering, but I've found no details on how this is done.

NEOWatcher
2012-Aug-10, 12:57 PM
Tried (briefly) to find info on the web... seems the oil is removed before the powdering, but I've found no details on how this is done.
I tried too, but my aim was to see what was left after making peanut oil.
Basically; the ground peanut meal squeezed to get all the oil out. It might end up dry enough to grind. (maybe a little help by cooking it a bit?)

MarkB
2012-Aug-10, 01:07 PM
Supercritical carbon dioxide?

Squink
2012-Aug-10, 01:55 PM
Supercritical carbon dioxide?Could be, but the powder might also be remnant paste left over from production of peanut oil via the cold press process.

Antice
2012-Aug-10, 03:22 PM
I am not sure you can actually get the remnant peanut paste to be dry enough to make it into a dry powder on it's own.
The only process i know of that i think could work is more like this:
peanuts get pressed into peanut oil and paste. peanut oil get's sold as well, peanut oil.
the paste then goes to big boiling vats. where the paste is boiled until all the fat separates from the peanut mass. The fatty acids float to the top. so just have to skim it off during boiling. the whole mess is done when there is no longer any fat being collected on the top. (this is a rendering process. also used to extract animal fat from bones and such) the remnant fats from this process might have a market use somewhere.. i dunno. peanut scented candles maybe?
the fat free (or nearly so) glop that remains in the boiling vat after fat removal can be dried in a process like that used to make coffee powder. inject it at high pressure into a fast moving hot stream to quick dry it into a fine powder.
the fat removal may actually not be needed in order to use the quick dry method unless one wants the fat gone. (I'm assuming that this is a peanut butter replacement product that is supposedly fat free?)

orionjim
2012-Aug-11, 02:07 AM
My health-conscious daughter (she has two chronic medical conditions, so she is very conscious of health and nutrition for very good reasons) recently purchased a jar of powdered peanut butter. Obviously, it's peanut based (that's the only ingredient), but grinding peanuts produces peanut butter, with all the oil.

Any ideas how one goes from peanut butter (full of peanut oil) to peanut butter powder?

Is this what you're trying to do??

http://www.livestrong.com/article/550409-how-to-dehydrate-peanut-butter/

JustAFriend
2012-Aug-11, 02:11 AM
all you had to do is type into google "how is powdered peanut butter made"

http://www.dailygarnish.com/2010/09/powdered-peanut-butter-a-review-taste-test.html
or
http://www.thenibble.com/reviews/diet/jams/pb2-powdered-peanut-butter.asp

I had never heard of it but it's probably originally made for the survivalist/bomb shelter types....

Squink
2012-Aug-11, 03:07 AM
The only process i know of that i think could work is more like this:
peanuts get pressed ... the fat free (or nearly so) glop that remains ... quick dryThat seems about right.
From post #9, Trader Joe's is selling peanut flour (http://en.wikipedia.org/wiki/Peanut_flour), which must be at least partially defatted.

Solfe
2012-Aug-11, 03:44 AM
Is this what you're trying to do??

http://www.livestrong.com/article/550409-how-to-dehydrate-peanut-butter/

Peanut butter + Microwave= Peanut Butter LAVA!

After my first experience, I will never do it again. Not even for science.

NEOWatcher
2012-Aug-13, 01:26 PM
Is this what you're trying to do??
http://www.livestrong.com/article/550409-how-to-dehydrate-peanut-butter/

Use a rubber spatula to remove the peanut butter from the jar.
Why does a rubber spatula matter at this step? :confused:



I had never heard of it but it's probably originally made for the survivalist/bomb shelter types....
Usually stuff like this is designed for the military and later adopted by those types. (and campers/explorers too).

swampyankee
2012-Aug-13, 09:24 PM
Is this what you're trying to do??

http://www.livestrong.com/article/550409-how-to-dehydrate-peanut-butter/

That looks like it's been dehydrated; her peanut butter powder has most of the oil removed, not the water.

bader158
2012-Sep-08, 05:46 PM
Powdered peanut butter? First time I heard about this yet. :)

Where do we usually get these? And is this also healthy?

swampyankee
2012-Sep-11, 12:21 PM
Powdered peanut butter? First time I heard about this yet. :)

Where do we usually get these? And is this also healthy?

Peanuts are very high in protein, and low in carbohydrates, so it's probably good for you. I think she got it from Amazon, which seems to sell just about all imaginable products.

kzb
2012-Sep-12, 05:29 PM
Solvent extraction using ether (or similar) would extract the oil leaving the protein and fibre behind. Basically, if you put peanut butter on a filter and wash it through with a volatile solvent you could produce this "dry peanut butter" quite easily. Finish it by drying in a vacuum to remove traces of solvent and water.