DON'T spray with coca-cola! Have you ever burnt sugar?????? It stinks! And the extra weight is pure sugar. Coke has a LOT of sugar in it. Do you want it in your lungs? Just use the apple slice or orange peel! Mold is not a problem for at least 12 to 24 hours (temperature and the # of mold spores on the pot cause the difference). Just put the fruit next to the pot in a tupperware container, seal and let it sit. Then rebag the pot. Or just get one of those little spray bottles and give it a LIGHT misting, roll it back up in the baggie and let it sit for a few hours. This is more risky since you can get it too wet and then it will mold. I'd go with the fruit, since you are new to the pot smoking world. And look into getting a vaporizer- your lungs will thank you and you need 1/2 the pot!