I've just started vaping recently, and have developed this habit...

I got a vabeen polar beast v2. in the box, when I took it out it had a little rubber piece plugging the hole. I decided to keep it there whenever I wasn't vaping to make sure no dirt collects inside.

after about two days I started developing a habit of taking the rubber piece out every once in a while and chewing on it. I'm pretty sure the reason it actually tastes pretty good is because some of the fumes stick to it and become liquid.

so my question is (and I know that in the context of vaping this is a stupid one), is it bad to do that? chew on something that is pretty much coated in vape juice?

also, is it actually important to keep that rubber piece in?