Can i use 2 year out of date icing?

Using icing that is two years out of date is not recommended, as it may have degraded in quality, flavor, and texture. While some types of icing, especially fondant or royal icing, may not spoil immediately, they can still pose health risks if contaminated or improperly stored. It’s best to check for any signs of spoilage, such as an off smell or unusual texture, and when in doubt, it's safer to discard it and use a fresh product.