vapetherockies and want2vape both make atty refresher. If you put it in, it helps get rid of the old flavor. All you have to do is vape the refresher and then you should be good to go (except for cinnamon and clove, it takes a little longer for those). If you don't want to do that, drinking lemonade also works great. I was a cigar smoker and asked a couple of 40 yr. cigar smokers about this. they recommended lemonade and it works awesome for both cigars and vaping