There probably are some feedback loops like this, but there's also just a careful balance between the wick size, the size of the jar, the formulation of the wax

There probably are some feedback loops like this, but there's also just a careful balance between the wick size, the size of the jar, the formulation of the wax, the preparation of the candle, and the use of it. Some examples of things that can go wrong: https://www.candlescience.com/wax/soy-wax-trouble-shooting-guide https://www.candlescience.com/wax/soy-wax-trouble-shooting-g...