Hand Poured Candle - 7 Oz Tin Scented Candle Luxurious Relaxing Smell Birthday Cake Rule of thumb: Burn one hour for every inch of your candle's diameter. Keep wicks trimmed to 1/4" and centered. Trimming your wick is one of the most important tips we can share. Burn candles on a protective, heat-resistant surface, away from drafts.