Unverified90% confidenceDecision RuleTime unknown
每次点燃前需将棉芯修剪至5mm左右，芯过长会导致火焰过大、冒黑烟、容器壁熏黑，直接影响烟雾残留和容器复用
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Unverified每次点燃前将烛芯修剪至约5mm，可显著减少黑烟和积碳，烛芯过长是黑烟熏黑容器的主因84% similarUnverified每次点燃前把烛芯修剪至约5mm：过长烛芯火焰大、产生黑烟和碳积，会熏黑容器壁并加速蜡消耗。木芯需剪掉燃烧后的碳化层84% similarUnverified点燃时若出现大量黑烟和杯壁熏黑，说明烛芯过长——每次点燃前应将烛芯修剪到约5mm，否则不仅产生黑烟也缩短燃烧时长84% similarUnverified每次熄灭前把烛芯修剪到约5mm，火焰过高（芯太长）会产生黑烟和积碳；用盖子或压熄法灭火而非吹灭，可减少烟雾和飞溅83% similarUnverified每次熄灭后应将烛芯修剪至约5mm再点燃，过长的芯会产生大火焰、黑烟并加速消耗；修剪后再点可显著减少积碳和杯壁熏黑83% similar
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