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Here is the part of the candle business nobody puts in the FAQ: the jar is the weakest link. The wax, the wick, the fragrance — those all behave predictably. The glass does not. It fails at exactly one moment: the first burn, when 140 °F of liquid wax meets 68 °F of cold glass and the thermal gradient is roughly 70 °F across a wall of glass that wa..

Every manufacturer who pours wax knows the first complaint that lands the day after a new batch ships: it does not smell strong enough on the first burn. The reflex is to blame fragrance load. It is not. Weak first-light throw is almost always a wick-sizing and wick-type problem that has a measurable answer hidden in the first thirty minutes of th..

You've followed every other rule. You poured at the right temperature. You used a soy blend that holds 9% oil. You let it cure for 14 days. And then the first burn happens and the candle either drowns in a blackened, sooty mess or the melt pool stalls out before it reaches the glass wall, stranding half the wax against the side of the jar. Every t..