Light the wick on one side and let the flame spread throughout its entire extension.
The candle should be left lit for 30 to 60 minutes every time you decide to light it to help the first part that acts as a barrier to dissolve.
This operation will help avoid the formation of "tunnels" and wax residues remaining on the edges.
It will also allow it to cool evenly and evenly when it turns off.
The height of the flame may vary during use of the product, and may occasionally appear to be extinguished.
This phenomenon is normal: even if it is lower, the flame continues to produce heat and its height should recover during use.

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