Types of Karo Syrup

• Karo syrup comes in dark, light and a reduced calorie version with 33.3 percent less calories than the dark and light versions. The dark version is made with a type of molasses called refiner's syrup. The light version is clear and vanilla flavored.

Storage of Karo Syrup

• Karo syrup should be stored at room temperature. It may be stored in the refrigerator without the temperature affecting the flavor of the corn syrup, although the syrup's consistency will then be thicker.

Shelf Life of Karo Syrup

• Karo syrup should be stored in a cool dry place, capped tightly and unaffected by outside contaminants. Karo syrup bottles will keep for 4 to 6 months after they are opened under these conditions.

Visual Signs of Spoilage

• If a bottle of corn syrup gets hazy or cloudy, this can be a mold haze, and the bottle should not be used. Likewise, if gray mold grows around the opening, it should be discarded.

Neutral Visual Signs

• Older bottles of Karo light syrup can develop a yellowish tinge. This is perfectly acceptable and does not affect the flavor of the corn syrup.