Good points,What are the ingredients of your liquid? Are there any flavours in it?
It may be the pod because the one that is in the bottle has been perfectly stable. I have the original bottle that they sent with the vaporesso, which is the Wyte. Natural flavors, Nicotine, vegetable glycerin, propylene glycol.
I am looking to try the ones suggested by ScottD, they seem to be really good, and I will switch the pod and see if I get better results. I presume that contact with the outside world, and the lips can create contamination on the liquid on the pod? not sure.