Storing Candles in the Freezer
Will the candles burn slower if put in the freezer first?
If you store candles in the freezer the wax will result in less molten wax that is available for consumption in the flame. This causes a smaller, dimmer flame that barely generates enough heat to maintain the burning process. For a scented candle it would also limit the volume of the fragranced pool of wax, thereby decreasing the hot throw.
It’s even possible that the candle will start consuming the wick as fuel and give off excess black soot or smoke. Eventually the candle will warm up to room temperature and proceed to burn in a more normal manner. Likewise, if you’re in really cold weather and left the candle in a trunk of a car, you need to let the candle adjust to the ambient room temperature before you light it.