Originally Posted by Montrealconfections
I am curious about glace icing's shelf life that is the main reason why I have not used it the milk in it scares me a little.
The small amount of milk won't affect the shelf life of the glace. The high sugar content acts as a preservative. I usually refrigerate the unused icing for about a week or two. I rarely ever refrigerate the cookies, as this icing doesn't like getting cold. Perhaps the iced cookies will eventually go bad, but it would be long after I'd want to eat the cookie!