Hey neg, congrats on your procurement of a Penelope! The ceramic piece really only needs to be replaced when damaged. It is a good idea to have some spares, (COV preorder). It will become discolored over time but this is normal. If it has a strange (soapy) smell or taste (when you
vape), you can pass it over blue flame a few times, but don't get it too hot. If you have any questions when your Penelope arrives, many people will be here to help! Myself included, if you ever want to PM me regarding Penny. Cheers!