For Reference..
Whenever you see a candle jar that looks something like this, know that the wax that the company uses is called Paraffin Wax. Paraffin Wax produces aloft of soot (the black smoke like substance around the jar) and it’s very toxic to the atmosphere! Most big companies choose Paraffin Wax because its easier to use and doese’t require as much “dedication” as Soy Wax require.
This is a candle that has reached a complete melt pool, there’s no longer any solidified wax along the edges of the vessel (although, it is okay if there’s a little bit of solidified wax remaining in the crevasses). A complete melt pool should be achieved by the end of the 4th hour of each burn cycle and is ready to be extinguished.
This is an example of a candle that would eventually start to tunnel due to it being blown out before a complete melt pool was formed.
“The ugly truth” about Soy Wax candles is they can often solidify with craters, bumpy/rough tops or frosted tops due to the way it cools down unevenly after a burn cycle. Do not be alarmed, your candle is still perfectly fine and usable. These are some of the characteristics of pure Soy Wax. Personally, I rather this affect due to 100% purity vs guaranteed smooth tops due to toxicity!
This is an example of a candle “sweating”. If your candle starts to look like this it just means the area you’re storing it in is too warm. To fix this, just move your candle to a cooler area.