NO, NO, NO! The scent you put on the decoy will remain with it until removed. Consider this: do you want to be walking out of the woods in the dark carrying something with estrus scent on it? Also, do you realize that estrus scent starts to “rot” once it’s exposed to air? What good will it be next week all over your decoy? Also, if you’re using a food based scent, it may get your decoy gnawed up by rodents when you store it. Canisters are great: you can place them around your decoy and close them up when you quit hunting.