kohburn
11-29-2007, 13:08
did a search but didn't find it so here it goes.
a little bit of history i learned that could be very handy for hikers.
Sodium Silicate solution
chemical formula: Na2O-2SiO2
( liquid )
Sodium Silicate, also known as 'Water Glass' or 'Liquid Glass', is a compound used in cements, passive fire protection, refractories, textile and lumber processing. Sodium Silicate was also used as an egg preservation agent in the early 20th Century with large success. When fresh eggs are immersed in it, bacteria which cause the eggs to spoil are kept out and water is kept in. Eggs can be kept fresh using this method for up to nine months. When boiling eggs preserved this way, it is well advised to pin-prick the egg to allow steam to escape because the shell is no longer porous.
and if you want to read an artical where they tested both storebought unfertilized vs fertilized fresh eggs using different methods including refrigeration then check out this http://www.motherearthnews.com/Livestock-and-Farming/1977-11-01/Can-You-Really-Store-Fresh-Eggs-a-Year-or-More-Without-Refrigeration.aspx
for a summary..
[1] Unwashed, fertile homestead eggs seem to store much better than washed, unfertile agribiz eggs. Why? Probably for the simple reason that they're unwashed ... and not because they're fertile. Hen fruit, as it comes from the chicken, is coated with a light layer of a natural sealing agent called "bloom". And, while a good wash may make a batch of eggs look more attractive, it also removes this natural protective coating ... leaving the eggs more subject to aging and attack by the air and bacteria in the air.
[2] The very best way we've found to stash eggs away for long-term storage is in a sealed container at a temperature of 35° to 40°F. Their whites may become somewhat runny looking over a period of time, buteven after seven months—the cackleberries stored in this manner smell good, taste good, have a good texture, and—in short—seem "almost fresh".
[3] The widely touted idea of covering eggs with a solution of one part waterglass (sodium silicate) mixed with nine parts of boiled and cooled water does indeed seem to work better than any other "room temperature" preservation method we tried. If our experiences are any indication, though, it's really good for only about five months and is a distant second to controlled refrigeration.
but thats 5 MONTHS... so hiking with eggs for a couple of weeks should be no problem.
a little bit of history i learned that could be very handy for hikers.
Sodium Silicate solution
chemical formula: Na2O-2SiO2
( liquid )
Sodium Silicate, also known as 'Water Glass' or 'Liquid Glass', is a compound used in cements, passive fire protection, refractories, textile and lumber processing. Sodium Silicate was also used as an egg preservation agent in the early 20th Century with large success. When fresh eggs are immersed in it, bacteria which cause the eggs to spoil are kept out and water is kept in. Eggs can be kept fresh using this method for up to nine months. When boiling eggs preserved this way, it is well advised to pin-prick the egg to allow steam to escape because the shell is no longer porous.
and if you want to read an artical where they tested both storebought unfertilized vs fertilized fresh eggs using different methods including refrigeration then check out this http://www.motherearthnews.com/Livestock-and-Farming/1977-11-01/Can-You-Really-Store-Fresh-Eggs-a-Year-or-More-Without-Refrigeration.aspx
for a summary..
[1] Unwashed, fertile homestead eggs seem to store much better than washed, unfertile agribiz eggs. Why? Probably for the simple reason that they're unwashed ... and not because they're fertile. Hen fruit, as it comes from the chicken, is coated with a light layer of a natural sealing agent called "bloom". And, while a good wash may make a batch of eggs look more attractive, it also removes this natural protective coating ... leaving the eggs more subject to aging and attack by the air and bacteria in the air.
[2] The very best way we've found to stash eggs away for long-term storage is in a sealed container at a temperature of 35° to 40°F. Their whites may become somewhat runny looking over a period of time, buteven after seven months—the cackleberries stored in this manner smell good, taste good, have a good texture, and—in short—seem "almost fresh".
[3] The widely touted idea of covering eggs with a solution of one part waterglass (sodium silicate) mixed with nine parts of boiled and cooled water does indeed seem to work better than any other "room temperature" preservation method we tried. If our experiences are any indication, though, it's really good for only about five months and is a distant second to controlled refrigeration.
but thats 5 MONTHS... so hiking with eggs for a couple of weeks should be no problem.