Most candle jars come with cork lids, which are good for you.
- Anti slip.
- Due to its water absorption. It is not easy to become blocked after heat expansion and cold contraction. However, the air tightness is still good enough.
- Cheap and easy to use.
- Cork lids for candle jars is a technology that has been used for a long time. There are many alternatives now. Just not eliminated. There is no need to make revolutionary changes to a small component that is very easy to use. There are still many products that use the technology of the last century, such as matches.