1. Push the wick into the wax liquid with a toothpick or wire to extinguish it, and then quickly set it right. The speed should be fast, and it will be straightened immediately after it goes out.
2. After extinguishing the scented candle, try trimming the wick. Use scissors to cut off and trim off the excess black part. Because the wick is too long, the candle will not burn completely, resulting in black smoke.
3. Use cotton swabs or other tools to draw the candles that are not burning on the side to the center close to the candle wick, which can also avoid the tunnel phenomenon of scented candles.
