Why is my candle turning yellow / changing color?

What you see: the wax yellows or darkens over time, or vanilla-scented candles turn brown.

Why it happens: two different things. General yellowing is usually light or heat exposure during storage. Vanilla browning is chemistry — vanillin oxidizes and darkens, and it will do it in every wax at every load. It's expected, not a defect.

The fix: store out of light and heat to slow yellowing. For vanilla: use a non-discoloring vanilla fragrance if the brown bothers you, or embrace it — customers who buy vanilla expect the color shift.

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