It takes a lot of patience yes.
How long do you burn a candle. The primary cause of black smoke is an overly long wick. If the wick is too long the balance of heat and fuel will be off. Use a Hair Dryer to Fix a Candle That Wont Light.
Heres how to do that. Large 24oz candles can burn 150 hours or more and smaller 8oz candles can burn for 40 hours. Therefore a large Housewarmer Jar should burn a minimum of 4 hours to liquefy the entire top layer of wax.
Trim the wick like the candle you see on the left. Add to that the length of time it takes to burn test which can sometime take weeks. Typically this is between 2 to 4 hours.
Even if a candle throws well the first couple burns if it peters out and fails to. 3 growth candles burn for about 30-45 hours. The time it takes for the candle to become completely liquid depends on the wax fragrance surface its on and the temperature of the room its in.
And in most cases especially with smaller candles you should only burn a candle for 2 to 3 hours. Candles burn between 5 and 9 hours per ounce of wax depending on the type of candle. Recommended burn time parameters for WoodWick candles as directed by the manufacturer should be followed.
Properly burning a candle can take several hours so dont light up a candle unless you have time to allow for a complete melt. But if you do this right the surface of all your candles will stay flat. You can use scissors nail clippers thats my personal favorite or a specialized wick trimmer but no matter what you do always trim.