The Fix Board

Two things work together: the first burn sets the candle's "memory," and a wick that's too small can never melt the pool out to the walls. Our bench standard is simple — the melt pool should be essentially at the wall by hour one, or the wick is wrong for that container. A tunneling candle you already own can be rescued with a foil tent, but that's a rescue, not the fix. The fix is the right wick, sized by measurement — not by guessing.

Full walkthrough: Why is my candle tunneling? · Watch: Fix #1 — Tunneling · Foiled Again (the foil-tent rescue)

Run the checklist in order. First: has it cured? Soy needs one to two weeks for the fragrance to bind — judging a candle before its cure is done gives you a false verdict every time. Second: wick size — too small a wick can't build a hot enough pool to throw the scent. Third: fragrance added above the wax's add-temperature, so the top notes flashed off before they ever bound. Cure fully and retest before you change anything else. One change at a time, or you'll never know what fixed it.

Full walkthrough: Why can't I smell my candle when it's lit? · Watch: Fix #2 — Weak Hot Throw

Wax shrinks as it cools and sets — sinkholes are the shrink showing up where the candle set fastest, usually right around the wick. Poke relief holes down along the wick while the top is still warm, then level it with a heat gun or a careful second pour. Pouring at the cooler end of your wax's range shrinks the shrink, too.

Full walkthrough: Why does my candle have sinkholes?

That black cap is carbon the flame couldn't burn off — the classic sign of a wick one size too big for the container, feeding more fuel than the flame can use. Size down, and trim to a quarter inch before every burn. A mushrooming wick also smokes and throws soot, so it's worth fixing at the source, not just trimming around it.

Full walkthrough: Why is my candle wick mushrooming?

Those white, patchy crystals are soy being soy — it's the natural wax re-crystallizing, and it's cosmetic, not a defect. The candle burns and throws exactly the same. You can reduce it with pour temperature and steady storage temps, but chasing zero frosting on 100% soy will drive you crazy. Plenty of makers treat a little frost as proof the candle is real soy.

Full walkthrough: Why is my soy candle frosting?