The combustible core of a candle, essential for sustained burning, requires careful selection. Material choice impacts flame size, burn duration, and overall candle performance. Fibrous strands capable of drawing molten wax upwards through capillary action and maintaining a consistent flame are fundamental to candle function.
Proper selection ensures efficient fuel consumption and minimizes soot production. Historically, materials like cotton, flax, hemp, and even reeds were employed. The choice influences the candle’s aesthetic and practical value, affecting scent throw from fragrance oils and the overall ambiance created.