Burn your candle for a minimum of two hours or until the wax pool melts to the edge of the glass. This will give you an even burn and prevent tunnelling.
Before you light your candle, make sure you trim the wick when cool to about 5mm.
The maximum recommended burn time is four hours per burn.
Always trim your wick after each burn to 5mm by taking off the “mushroom” top with your fingers or a tissue.