I love making flowers out of gum paste. (I've found Nicholas Lodge's recipe to be my favorite.) I've been primarily practicing with various techniques so don't have a huge inventory. I keep several examples of each stuck in styrofoam or non-skid sheets, in large, non-air-tight plastic boxes, labeled as to the variety. These are stacked in a dark closet in my cake room. I have had no trouble with dust or fading. I don't really know their "expiration date", but when I get a call for a particular flower I have a memory of how to make it and an example at hand.
Jan
I have bunches stored in tissue paper and bubble wrap with no direct sunlight. It looks like they could last forever, lol, some are like 9 mos. od. I need the room however, thus I'm tossing them. As long as they look as perfect as the day they were made I would use them. When I first started making them some became soft which I just tossed-I believe those were made from a combo of fondant and gumpaste.
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