I believe sugar is a preservative because it's hygroscopic. http://www.sciencefocus.com/qa/how-does-sugar-act-preservative http://www.sciencefocus.com/qa/how-do

I believe sugar is a preservative because it's hygroscopic. http://www.sciencefocus.com/qa/how-does-sugar-act-preservative http://www.sciencefocus.com/qa/how-does-sugar-act-preservati...