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There's a wall clock on the burn-test bench in our workshop, and it's the only piece of equipment you'll never see in any spec sheet. It's how we separate a candle that performs for 200 hours from one that looks beautiful for 40 and then turns into a wax tube around a hole. The number it enforces: four hours. Not six, not "until it goes out." Four...

Your candle tunnels. You know the look: a neat hole down the center, a thick ring of unburned wax pressed against the glass, and by burn six the flame is a stubble that sputters. Everyone blames you. Burn it too short, they say. The real answer is in the first fifteen minutes, and it has nothing to do with you. It has everything to do with the jar...

You have three "separate" candle problems. A black ring at the rim. A river of wax running down the glass. A jar split on the second burn. You will see them diagnosed as air flow, wick length, and bad glass, in that order. Wrong, wrong, and half-right. They are one problem wearing three hats: the wick diameter does not match the jar diameter and th..

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 candle seller tells you to let the first burn run until the melt pool reaches the edge of the container. Nobody tells you why that burn decides everything, or what to do when the pool stalls out at 60% of the diameter and leaves a cold ring of solid wax at the glass. That cold ring is not a manufacturing defect. It is a heat balance, and you..

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..