[NAFEX] Sugar as a preservative

Jim Fruth jfruth at tds.net
Sun Feb 1 11:37:56 EST 2009


    Ever wonder why jelly and Maple Syrup keep (fail to spoil) without 
adding a chemical preservative?

    Sugar is a preservative so long as it is added so the dissolved solids 
equal 65.5 percent.  I don't understand all of the chemistry surrounding it 
but I'm told that sugar kills organisms via osmosis (movement from a lower 
density {from the bodies of organisms} to a higher density {the sugar 
solution}). 




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