Does opened bottle of corn syrup last a year in the refrigerator?

Answer 1

I have a Western Family brand bottle of light corn syrup with ingredients: corn syrup, high fructose corn syrup, salt, and vanilla. It has been stored in my dark 60 degree pantry , opened, for five years I use a cup each year for candy, clean the bottle top and threads thoroughly, close, invert several times to drown any mold spores which may have fallen onto the surface, and put it back in the dark pantry. It tastes the same every year with no signs of spoilage. I believe the first signs of spoilage for such a high sugar product are growths on the surface. There is too high a concentration of sugar for bacteria or molds to grow in the liquid.