When burning your soy candle, always burn until the soy candle liquefies to the edge of the container. Not letting the candle liquefy to the edge will result in tunneling and poorly affect your candle burning time.You may notice some mushrooming of the wick. This is completely normal for the natural wicks that I use. Always trim the wick before each use, keep wick trimmed to 1/8 inch for the best soy candle burning results. Do not allow wick trimmings to fall into your wax melt pool.